Archive for the airline delays Category

Air Travel, De-Icing and Delays: The Real Deal.

Posted in air travel, airline, airline delays, airline industry, airline passenger, airline pilot, airline pilot blog, airline safety, airliner, airliner take off with tags , , , , , , , , , , on March 1, 2015 by Chris Manno

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Network news media love a screaming headline, even if they have to fudge the facts to suit the rhetoric. But here is the reality behind the wailing and gnashing of teeth regarding recent ice-related delays at major airports: the airlines did a damn good job given the challenges heaped on them in this storm.

As a captain, I flew a 737 trip in the middle of the week in the slush and snow out of DFW. Here is your chance to bypass the media frenzy (NBC News carefully crafted “9 hour delay for passengers”–quietly admitting later that it wasn’t on-board) and watch the flight evolve despite the weather interference.

At 06:10, a phone call from crew schedule woke me up. I had volunteered to fly a trip that day and they offered one, a turn to John Wayne Orange County (SNA) scheduled to depart at 10:10. I agreed to fly the trip.

Normally, it takes me 35 minutes to drive to DFW. I left my house at 6:45 to allow extra time for the slush and snow snarling the highways.

I arrived at DFW an hour later, an hour and twenty minutes early. The jet was parked at the gate, had been all night in the freezing precip, so I went aboard and started powering up systems. A quick check of the wings and fuselage confirmed what I assumed driving in: we’ll need a good de-icing on the wings, control surfaces and fuselage.

Let’s get more specific about aircraft icing. First, we need to remove the accumulated ice. Second, we need to prevent more ice from re-forming on aircraft surfaces. De-icing can be accomplished by a number of different fluids under pressure. “Anti-icing” is provided by a different, specifically designed fluid that chemically inhibits the adherence of ice on aircraft surfaces.

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In our case, the ceiling was low and visibility limited by ice fog, confirming the critical temperature-dew point spread that leads to condensation which of course would freeze on any cold surface. That means both de-ice and anti-ice will be required.

Anti-ice fluid effectiveness varies with temperature, and rate and type of precipitation. The duration of anti-ice protection declines as various forms of moisture increase. So, gauging the time–called “holdover time”–is a call that must be made by the flight crew based on observation of conditions actually occurring.

You can tell when anti-ice fluid has been applied to a jet because it will be colored either brick red-ish or lime green. The intensity of the color cues the cockpit crew as to the fluids declining effectiveness–it fades as the fluid loses the ability to inhibit icing. We actually check visually that from inside the aircraft prior to takeoff.

A side note about the fluid color. Most airlines now use the green fluid because the red was difficult to distinguish from hydraulic fluid as it dripped from crevices and bays on the aircraft, sometimes several flights downline from the original de-icing treatment. I learned long ago how to differentiate the two: propylene glycol, the main ingredient in anti-icing fluid, smells and tastes sweet. Skydrol hydraulic fluid is bitter. Yes, I’ve tasted both in the thirty years (and counting) I’ve been flying jets and laugh if you want, but it saves all aboard a needless and probably lengthy maintenance delay.

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Another unseen complication that adds to the icing mix is jet fuel. The worst case is with fuel remaining in wing tanks after a flight at high altitude. The fuel in the tanks become super cold due to the temperature at altitude (often -50C or less) and as a result, the wing surfaces both upper and lower are super-chilled, causing any moisture in the air to freeze on contact. Explain that to the guy sitting next to you griping as we de-ice on a sunny, clear day: humidity plus ice-cold metal surfaces can add up to wing icing that must be removed: we can tolerate no more than 1/8″ of mere frost on the underside of the wing only. Any other airfoil contamination must be removed before flight.

Clear ice on wings is not easy to see from the cabin, particularly the area near the wing root, which is critical on aircraft with tail mounted engines like the MD-80 and -717, because upon wing flex as rotation and liftoff occur, any wing root ice that breaks loose into the slipstream could easily fly back along the fuselage to be ingested by either or both engines, with potentially disastrous results.

So why don’t aircraft have heated wing surfaces? Actually, most MD-80 upper wing surfaces do have an electrically heated thermal blanket on top of the inboard-most portion of the wing surface. But, not the curved wing root joint which is not visible from the cabin. So, you’ll notice a lot of MD-80 aircraft having to de-ice in even the slightest icing conditions.

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In our case, I knew the fuel pumped aboard for our flight would have the opposite effect. At DFW, the fuel is stored underground and pumped aboard from a hydrant, not a truck. The effect would be to warm, not freeze the wing surfaces. That would help with de-icing, but we’d still require a thorough dose of Type-2 de-icing fluid to clean ice off the jet.

By 9:10, the official crew check-in time, there was no sign of a first officer. I started the process of printing a flight release and agreeing on a fuel burn, as well as the complex process of determining takeoff speeds, made more complicated due to the presence of slush and snow on the runway. Any type of contamination, from pooled water to slush to ice can impede both acceleration and deceleration. Both maximums (takeoff and stopping) must be accurately calculated and while there is a published “runway condition,” the actual calculations are very much a realtime, eyeballs-verified assessment: I’ve broken through an undercast during an ice storm as we approached DFW only to find that just the first two-thirds of the runway had been cleared–a fact not noted on the official field report. That lopped off about four thousand feet of useable braking surface.

At 9:30, forty minutes prior to pushback, still no sign of a first officer. The roads are awful, as is the traffic, so I’m not surprised and I’m glad I left home as early as I did. I called Crew Tracking, catching them by surprise as well: in this winter storm, there were plenty of stuck, stranded or missing crewmembers. They hadn’t noticed.

I resigned myself to going out into the sleet to do the exterior inspection myself, planning to have all preflight duties complete in case the first officer should show up at the last minute. Here’s an up close look at the leading edge icing:

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and the ice on the wing trailing edge:

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Engine covers were installed, a very smart preventative measure to prevent icing, but which would require maintenance removal and documentation. I radioed maintenance to get in the cue for this required maintenance and fortunately, American Airlines had well-staffed maintenance for this shift. But again, they too had technicians who, like my F/O, were stuck in the ice storm snarled traffic, slowing things down.

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With the exterior preflight complete, I requested the upload of navigation and performance data as well as our clearances. And I took a minute to call the Crew Scheduling Manager on Duty to suggest that they grab the deadheading 737 first officer sitting in row 20 and reassign him to fly the trip. He said if the duty legality limits worked, that’s what he’d do.

By 10:00, the conscripted first officer was in the right seat, having agreed to the reassignment: he’d fly the leg to the west coast, his home base, and rather than going home, he’d also fly the leg back to DFW and only then deadhead home, if possible. Just one more crewmember going the extra mile to make the flight operation work.

We pushed back nearly on time (10:21 vs. 10:10) , but the ramp was congested with ice and slush, slowing everyone down even further. The precip had stopped, the ceiling had lifted to a thousand feet and the temperature-dew point spread had widened, all of which meant less chance of ice formation. Our holdover time would expand, allowing us to de-ice on the ramp rather than at the end of the runway. Essentially, that made for a shorter wait for all aircraft: if there is freezing precip, or any precip in freezing temps, all de-icing would have to be done at the end of the runway, meaning long takeoff delays.

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Taxiing a seventy-five ton tricycle on ice and slush is tricky, requiring slower speeds and a critical energy management: too slow and you’ll have to add excessive power to restart movement, slinging ice and slush at other aircraft. But you also need almost zero forward inertia to maintain nose gear traction in any turn, aided by asymmetric braking on the main gear into the turn. It’s a dicey operation that takes extra time.

We kept the flaps retracted on taxi-out so as to not accumulate any slush or freezing water on the underside of the flaps, a potential problem during flap retraction. Our miles-long taxi from the east side terminal to the west side runway gave us plenty of time to assess the surface conditions and fine-tune our power and speed plans.

We finally lifted off nearly fifty minutes after taxi-out. Through route shortcuts and favorable winds, we made up some of the lost time, arriving twenty-eight minutes behind schedule.

I believe my flight was more typical of all flights during an unrelenting ice storm, but mine isn’t the one craftily worded into a horror story by the media. Regardless, the fact is that icing makes flight operations complex, difficult and challenging. Yet more flight operated in the same way mine did–slow, careful, successful–than the media version of a few unfortunate cases. I take it as a compliment that the reality of these winter flights was a success story leaving the media very few flights to turn into their typically overblown horror stories.

By the time I got home nearly fourteen hours after voluntarily accepting the challenging flight assignment, the network news was already sensationalizing the “impossible” travel situation created by SnoMIGOD 2015 which dumped an unprecedented amount of snow and ice on DFW and Dallas Love Field. At least I knew the facts were not as they’d have us believe–and now you do too.

Cover Airline Book 1Travel smarter, with this insider air travel field manual and survival guide. Check it out on Amazon.com, or just click this link to order from Amazon.

Help for Fearful Flyers

Posted in air travel, airline cartoon, airline delays, airline passenger, airline pilot, airline pilot blog, airline ticket prices, airlines, airport, airport security, fear of flying, flight crew, jet, mile high club, passenger, pilot, travel with tags , , , , , , , , , , , , , on January 31, 2015 by Chris Manno

Cover Airline Book 1Here’s a chapter from my brand new book, “Air Travel and The Death of Civility: A Field Manual & Survival Guide,”  crammed full of shortcuts, insider info and little-known techniques to make your air travel as stress-free and smooth as possible.

Available now from Amazon.com Just click on the title link above, or search on Amazon.

Help for Fearful Flyers

Please don’t feel alone because you’re not: many passengers have some level of nervousness about flying. It’s just another version of the anxiety many feel at the dentist, the emergency room; virtually anywhere new, unfamiliar, and potentially uncomfortable. In fact, people and businesses actually cultivate and market exactly this type of anxiety at theme parks with roller coasters, haunted houses, and terrifying thrill rides. Some people actually crave the feeling.

What a nervous flyer feels is perfectly normal and need not eliminate the option of flying. That fact alone is reassuring, especially in the case of groups or couples who limit their travel options due to the reluctance of one individual to fly. Often, a large part of a passenger’s unease is an understandable fear of the unknown, which is essentially just unfamiliarity with a strange new environment. So let’s fill in some of those blanks in your flying knowledge and then, we’ll discuss techniques to manage your unease.

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First, let’s consider the aircraft and its durable, ingenious engineering. The designers of our jet have refined their process of building and manufacturing our airliner through decades of progressively better models with ever-improving materials and techniques.

The aircraft was built to rigorous standards of strength and durability far beyond what we will ever encounter in flight. To be specific, the FAA certification standard required the aircraft to demonstrate that it could withstand forces in turbulence well beyond that which has ever been recorded, plus an additional margin, with complete airframe integrity. That means that regardless of turbulence, there will be no airframe damage or structural deformity, we’ll be still flying just fine. Basically, this aircraft is not coming apart in any conditions we encounter in flight. You don’t worry about your car running over a bump at high speed, over railroad tracks, or even a curb–but it’s not built to anywhere near the strength standard of our jet.

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You’ll actually notice less turbulence in flight these days, due to a couple of assets we use. First, radar technology has advanced not only in display resolution, but also in a predictive capability: now, our digital radar and on-board computers are sifting through thousands of bits of digital data gathered by radar and other systems, giving us an accurate prediction of where turbulence may occur. Our radar is integrated with the Global Positioning Satellite system and knows where it is at all times, allowing it to separate terrain features like mountains from weather echoes. The radar aims itself correctly and has an accurate, interactive display of over 300 miles ahead of the aircraft. The radar has a “pop-up” feature that allows it to show on our displays even if it’s not selected, when it finds a weather problem many miles away that we need to know about.

Add to that the ground-based computer analyses that are charting patterns of turbulence, which are then automatically up-linked to us in flight, plus the exchange of real-time information between pilots and air traffic controllers and the end result is less turbulence encounters, and lighter turbulence when encountered. There are days when rides just aren’t completely smooth and we’ll encounter some bumps. But rest assured, we’re working our way through the sky in the smoothest flight path possible.

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Visualize the air we fly in for the fluid that it is, with currents, eddies, flows, and even the wakes of other aircraft also aloft. Crossing a jet’s wake is much like crossing that of a boat: rumbles, some bumping, then we’re past the wake. Atmospheric eddies and currents can cause similar short periods of bumpiness, or even just a mostly choppy sea of blue. If that persists, we’ll search for a smoother altitude–just give us a few minutes to coordinate a clearance from air traffic control.

Mountains cause the atmospheric equivalent of river rapids in the airflow, even at altitude, because orographic features like ranges and peaks act like rocks in a stream, causing a rougher ride. That’s typical of a flight path across the Rockies: some bumpiness is not unusual. But you can rest assured that at our flight speed, we’ll pass through the area without delay.

In US airspace, airlines and Air Traffic Control pool weather information to share among all flights, and one designated FAA facility manages traffic and routes around areas of severe weather. With all of these assets working for us every flight, we don’t get taken by surprise by weather.

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That type of coordination that shares weather and route information is emblematic of the entire US aviation system, which has had a seventy-year learning curve of development, testing, and refining that has resulted in a strong, reliable oversight and infrastructure for commercial aviation, including

the Federal Aviation Administration, Department of Transportation, and the National Transportation Safety Board. All three in combination provide experienced and comprehensive oversight that makes flying the safest mode of transportation you could choose.

Another highly-developed airline support system monitors our jet in flight. Our technical operations center monitors hundreds of bits of data sent in a non-stop, automated stream from our jet in flight. In flight, I’ve had a message from our round-the-clock tech center print out that said, “Can you verify the vibration on the left engine? It’s reading a little high down here.” The engines alone transmit a huge stream of telemetry to our tech center, and that data allows long-range trend diagnosis that has all but eliminated in-flight engine failure on the Boeing jets I fly. Trend data and years of diagnostic experience have allowed Boeing, our

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tech staff, and our maintenance center to keep aircraft systems in peak operating forms.

From years of firsthand experience, I can say Boeing jets in particular are finely engineered, rugged and reliable American-made jets, and that’s the main reason I fly them. Thousands of hours in Boeing cockpits have given me every confidence in the strength, power, and versatility of these jets which are capable of handling anything we could encounter in flight.

I’m fairly typical of the pilots you’ll find in command of your flight, in my thirtieth year with my airline, my twenty-fourth as captain. I was an Air Force pilot before that, and like my colleagues on the flight deck, I have the singular goal of flying safely, procedurally perfectly, and always conservatively. I have three back up plans for every eventuality and firmly believe there is nothing I could face in flight that is beyond my capability. That’s not only due to experience, but mostly because of years of relentless, ongoing advanced training not only in full-motion simulators, but through hours of classroom instruction, systems training, and recurrent exams. I have every confidence in the copilots I fly with who share the exact same goals, procedures, and training. In the cockpit, we’re unanimous about one thing: the safe, efficient, and smooth operation of our flight.

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So, knowing all this, what else can you do to ease the stress of a flight? First, keep the above facts in mind, reviewing as needed leading up to your flight and even on board. Second, keep track of the elapsed time. Your airline app will tell you how much flight time to expect, as will the captain in his PA and also, the flight attendants will normally tell you the planned flight time in their PA. Whatever the total flight time is, divide it in half. Now, keep track of the first half, which will elapse much faster for you than the total time. Just that half, count it down. Upon reaching halftime, relax and rejoice: from there you will count down an ever-shrinking time period much shorter (and growing ever shorter) than you have already endured quite successfully.

Concentrate on your breathing, keeping it steady and calm. Reading matter, a video, music: dive in, focus on that. Claim a little “me” time and catch up on reading or viewing that you never seem to have time for otherwise.

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Keep an eye on your halftime benchmark, noting your steady progress. Bear in mind the fluid aspect of air and anticipate some waves in this most vast sea we’re sailing through. Be confident that your extensive flight team, including the crew on board as well as our airline technical, operational, and dispatch staff constantly monitoring and interacting with us in flight, plus the air traffic control network of pros handling our route passage. We’ve all been doing this for a long time and as our record shows, we’re darn good at it.

I’ve used the countdown technique at the dentist office (my “nervous flyer” experience) as well as when running several 26.2 marathons. It works!

There may never be a time when a nervous flyer actually enjoys a flight, but there’s no reason a flight can’t be tolerated with minimal stress with a little forethought and perhaps, an equal amount of distraction with entertainment or conversation. Here’s a summary for you to review as needed:

Summary:

• Unfamiliarity is often at the core of preflight anxiety. Review the contents of this book and this section, and give yourself credit for your successful progress through the various steps required for a plane flight.

• Your aircraft is a tough, versatile, well-designed engineering marvel that has been refined over years of improvements.

• Constant monitoring of the aircraft’s vital systems in flight allows reliability and safety that makes air travel the safest travel option.

• Weather systems are a reality of life, but we have advanced technology on-board as well as on the ground keeping us well ahead of weather challenges and well clear of danger.

• The atmosphere is a fluid and behaves much like a large body of water, with the same, normal characteristics such as currents, flow, eddies, wakes, and the occasional bump.

• Your pilots are highly experienced and dedicated solely to the safe, professional operation of your flight.

• Use the countdown system of flight time to your advantage, watching your time aloft grow ever shorter.

Cover Airline Book 1Other chapters include buying a ticket, getting the best deal and the right seat, check-in and security shortcuts, on-board perspective, aircrew insider perspective, damage control and much, much more. Read this book, then travel like a pro!

The perfect gift for someone about to travel, for those reluctant to fly–and for those eager to fly and wanting to have a stress-free, excellent air travel experience.

Order your copy from Amazon.com

Just click this link.

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Air Travel Illustrated: The Holiday Flights.

Posted in air travel, airline, airline cartoon, airline cartoon book, airline delays, airline industry, airline passenger, airline pilot, airline pilot blog, airliner, airlines, airport, airport security, cartoon, fear of flying, flight attendant, flight crew, flight delays, jet, passenger, pilot, travel with tags , , , , , , , , , , , , on November 26, 2014 by Chris Manno

Some times words won’t do, or maybe illustrations can do better. Regardless, if you’re flying somewhere for the holiday, this is your life enroute. If you’re home already, here’s what you’re missing.

First, my best advice either way:

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With that in mind, make sensible reservations based upon experience, rather than an idealized hope:

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Flights are packed, so plan your inflight strategy:

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Getting a last minute seat can be nearly impossible due to holiday load factors, unless you’re willing to compromise:

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Keep in mind that you’ll have to handle your own baggage:

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Prepare mentally for the challenges of airport security:

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Please board only when your sedative is called:

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Ignore the pompous guys impressing each other in First Class:

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Or maybe share your admiration for them as you pass by:

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Realize that children are on-board, so you’ll need to deal with them:

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And parents, remember it’s your responsibility to discipline your kids on board:

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Pay attention to the flight attendants when they speak to you:

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And they may be talking to you even indirectly:

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So pay attention:

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And when I turn on the seatbelt sign, it does mean you:

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Realize that weather can complicate our flight:

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So be prepared.

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Anticipate the post-holiday letdown:

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Enjoy your leftovers properly:

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And congratulate yourself for traveling and thereby avoiding a worse fate. Bon voyage!

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More cartoons? Get the book:

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Get your copy now–just click the button below:

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Your Pilot Isn’t Thinking About Your Connection–and That’s Good.

Posted in air travel, airline, airline cartoon, airline delays, airline industry, airline passenger, airline pilot, airline pilot blog with tags , , , , , , , , , , , , , , , , , on November 7, 2014 by Chris Manno

 

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There’s a blessed silence in the cockpit right before pushback, immediately after the number one flight attendant reports “cabin ready,” and slams the cockpit door securely shut. Before that, the usual boarding chaos filters through the open cockpit door, the clatter of catering the forward galley, ramp workers stepping in to deliver some cargo paperwork, maybe some aircraft maintenance techs wrapping up required service or repairs.

But the noise and activity isn’t all that ends with the door slam. We call it “sterile cockpit,” an industry-wide concept rooted in the best Crew Resource Management (CRM) practices that dictates all non-flight essential conversation ceases in order to focus solely on the prescribed, often complex procedures required to fly the jet.

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In other words, leave all distractions behind and keep your head in the game. And I take that concept a step further–I clear my mind of everything except procedures (there are a multitude) and situational awareness: he’s moving, we’ll wait … wingtip clearance here … wind shift, at least for now … we’re heavier than planned.

Not just sterile cockpit verbally, but mentally as well. When you’re moving eighty tons of metal and a hundred sixty warm bodies, there’s no room for distraction. My airline (like most, I assume) has done a good job of minimizing outside considerations through the basic premises from which the pilot-in-command operates.

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For me that means I’ve “pre-worried” about the extraneous considerations–both yours and mine–and for the good of all, I’ve put them aside, compartmentalized them, and now look beyond them. When I say yours, I mean your down line connection, your time schedule, your reason for flying whether business or pleasure. Mine often overlap yours–my days off, my family plans, my important events, even my own physical stress of time zone shifts, late hours that could creep later, and my pay considerations.

Doesn’t mean these concerns are invalid, unimportant or dismissed–they’re just not on my mind as I balance crucial flight variables as they unfold. They’re fully addressed in the basic premises of our airline operation, stipulated in a hierarchy a passenger might not like, but which makes the most sense for a safe flight operation:

First, safety, second, passenger comfort and third, schedule. Yes, your connection, even your arrival time, is in third place. Just remember, I have similar personal concerns and I’m putting them completely aside as well. Here’s why.

A recent Flight Safety Institute report highlighted one of the factors that contributes to the comparatively high accident rate per flight hour experienced by air ambulance operators. One factor mentioned was the very real life or death pressure perceived by the pilots: if we don’t land on this spot, at this time, regardless of circumstances, a life may be lost.

That’s a very vivid and understandable urgency that would be difficult to put out of a pilot’s awareness. Nonetheless, the air ambulance operators with the lowest accident rates are the ones who’ve put CRM at the forefront, refocusing on flight safety limitations as a governing principle and setting aside all else.

 

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Now, your kid’s birthday, your business or other event, yes, they’re important–so are mine. But they aren’t life or death, are they? But as flight distractions, whether it’s an air ambulance or an air carrier, they could easily become exactly that.

From the moment we push back, the clock in my captain’s mind runs on weight, not minutes: how many pounds of fuel do I have, which translates into the ability to remain aloft. So, when you (or maybe a commuting crewmember, to be fair, asks “can we fly faster to make up time,” the real question in my mind is “can we afford to gamble by shortening our available fuel duration, and to what purpose and at what cost?” Less holding time available at our destination, maybe requiring a more stressful approach? No way.

scat vomitThe answer to “purpose” would be to shave off 5 to 10 minutes–hardly worth it–at the price of degrading our ability to arrival delays because of an increased fuel burn for speed. The question “can we top this weather rather than circumnavigating the area to save time” brings the opposite answer: maybe, but the more prudent option is to avoid–so we’ll spend the extra time (sorry about your connection–and mine) to do that.

And if you think we as pilots don’t have crucial connections, think again: besides losing pay in a misconnect, there’s more. For many crewmembers, even a ten minute late arrival can mean the difference between getting home or spending a night in a hotel at their own expense and losing a day with family. Sure, I eliminate that worry by not commuting, but crew base positions are determined by seniority–junior pilots and flight attendants can report to work and receive the official notice, “as of next month, you are based a thousand miles from home.”

That all needs to wait outside the cockpit door. Inside, we must focus on the vital flight considerations that trump all distractions.

Again, arrival time–and connections–hang in the balance, but that’s a distant third place behind safety. So yes, I’m not thinking about your connection–and you should be glad. Because that’s exactly what you’ve paid me for, and you deserve no less than the safest, most professional flight, no matter how long that takes.

 Fly the jet firsthand: cvr w white borderThese 25 short essays in the best tradition of JetHead put YOU in the cockpit and at the controls of the jet.

Some you’ve read here, many have yet to appear and the last essay, unpublished and several years in the writing,  I consider to be my best writing effort yet.

Own a piece of JetHead, from Amazon Books and also on Kindle.

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Winter Flight Delays and YOU.

Posted in air travel, airline, airline delays, airline pilot, airline pilot blog with tags , , , , , , , , , on February 9, 2014 by Chris Manno

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The news media covers the weather-induced flight delays relentlessly from the outside viewpoint, posing as a passenger would, facing headline-grabbing (isn’t that their stock in trade?) shipwreck-castaway-snowmageddon-apocalyptic disaster. They play it as if everything should operate normally, snow or no.

Fine–enjoy the hype, especially from the outside of the aviation profession, from the perspective of urban legend, unreasonable expectations (sure, airlines should operate like clockwork regardless of polar temperatures and contaminated surfaces) and shrieking sensationalism.

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But here’s the inside look at the very real challenges, risks, and safety constraints the news media doesn’t want you to consider.

First, you personally, as an airline pilot and captain, hate the news of a winter storm.  Because of the flight delays? Cancellations? No–it’s simpler than that: just getting to the airport is a challenge on iced-over roads, never mind getting home twelve hours later–barring cancellations–when the roads are even worse.

Put that out of your mind, and leave an hour earlier for the ice-afflicted slide to the airport, adding to what you already know will be a twelve hour day. Park the car facing south, at least, hoping the north wind will coat only the back window with an inch of ice to scrape off after midnight when or if you manage to transit 3,000 air miles and return. Fat chance–on the ice, and the return.

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Finally in Flight Ops, where Defcon 3 reigns: they’re almost out of standby flight attendants to assign to flights in place of delayed or diverted inbound cabin crews. Now they’re breaking up enroute or just arriving crews and reassigning them to outbound departures.

Which means, as the day goes on, more cut-and-paste flights and assignments for more crew members. That recital your kid’s in tonight? Birthday, anniversary, or just plain day off? Fugghedaboudit–you’re going elsewhere, with an indeterminate return time or even day.

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Your jet is coming in from South America where it’s summer, so no problem, right?

Wrong: it will still be delayed, metered in with all arriving flow times, and summer aside, the jet will need to be de-iced anyway: the on-board fuel has been cold-soaked at altitude to about minus 30 degrees, and when that cold-soaked wing hits the moisture laden winter overcast and precip, there will be plenty of ice, especially on taxi in and after parking. Add another 45 minutes, at least, to your flight day.

And you know that de-ice is anything but simple. First, all jet intakes and cowls must be clean and uncontaminated BEFORE you even get to the de-icing pad prior to take off. Who certifies that?

Uh, YOU: get outside and stick your head into both engine inlets to be sure they’re clean. If not, add another 45 minutes to get the engines de-iced so you can taxi to get the aircraft de-iced. And get back downstairs afterward to be sure the procedure was done properly before you try to start one of those $5 million dollar engines.

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The rate of precip is specified in the official weather report, but official weather reports are hourly, and we live (and answer for) the effects in real-time: YOU determine the precip rate and type (snow, freezing rain, ice pellets) and decide which de-ice procedure and fluid will be required.

Then, assuming you have made your way from the gate to the de-icing pad, YOU determine the “holdover time,” or effectiveness time for the de-icing, which again depends on the conditions (temp, precip, rate of precip) so YOU can determine how long you can wait for take off and still have an uncontaminated airfoil.

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Now, consider the surface, both taxiways and runways. All takeoff performance is based on a dry or wet runway, but iciness throws in a curve ball. You have to account for the drag of slush on acceleration, plus the loss of brake effectiveness on any icy runway.

Once again, the field weather report contains the “official report,” but “official reports” don’t fly airplanes, and they are hourly, not instantaneous. You know the limits (slush, snow and ice maximums) as well as your jet’s tolerance and required corrections to your performance data.

Do the calculations for all possibilities: based on the official report, based on what you see, based on conditions worsening. Know all three and be prepared to execute accordingly.

Know that cold-soaked engines behave differently, oil and hydraulic fluids need time and circulation to achieve design viscosity. Be alert for binding flight controls, before and even after de-icing, where melted ice can trickle into dry bay areas and refreeze quickly.

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Taxi gingerly, knowing that iced taxiways are inconsistently slick and your eighty ton tricycle will not stop if one side has traction but the other wheels five yards away do not. Probe the turns with the nosewheel first before you commit the main gear in a turn.

Run up both engines periodically to 70% to verify proper operation, carefully, so as not to blow away a smaller jet behind you, and with consideration for the traction as you do.

Trust but verify: as you taxi, see what’s actually happening on the runway. Is it uniformly clear? Is it draining? Are other jets kicking up rooster tails from their nosewheel on takeoff roll, indicating pooling? Are there contaminated areas? How does the last third look, given that in an abort you’ll need full braking there? How does the first third look, since you’re primary and critical acceleration will be there?

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Taxi out with flaps retracted so as not to get slush or ice sprayed up under the wing and onto the flaps–they may jam on retraction because of the close tolerances, and will take extra de-ice time if they’re contaminated.

When you FINALLY taxi out, get ready for de-ice: engines shut down, bleed air from the APU off; ground crew on headset tells you the de-ice fluid mix (or asks you what type you need), then certifies afterward that the jet is clean and you start your holdover clock based on what you have determined is the max time (usually minutes) to wait for takeoff (that’s why de-icing is normally done at the runway rather than the gate).

Now restart engines, reconfigure with flaps and slats, check flight controls, final weights, final speeds, final corrections based on NOW (your three pre-calculated options) and your go/no-go decision.

Power control is key to airspeed.

Take the runway, hold the brakes, power to 80% and scrutinize all the instruments: go.

Climb out is a relief, at least partially: you still have to turn around at the coast, then fly back into the snowed-in airport after enduring even more inbound metering delays.

But the worst, ultimately, is yet to come: the drive home, if and when you return, once you thaw out your car. That, however, is 3,000 miles from now. Worry about that then, get home as best you can–with this weather, they’re going to need you to fly tomorrow, too.

Actual photo from my 2.5 hour, 30 mile drive home from DFW after a recent winter storm.

Actual photo from my 2.5 hour, 30 mile drive home from DFW after a recent winter storm.

A “simple” aircraft change? You tell me.

Posted in air travel, airline delays, airline pilot blog, airliner, airlines, airport, flight crew, jet, passenger, pilot, travel with tags , , , , , , , on December 1, 2013 by Chris Manno

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Walking down the jet bridge to the plane, flight plan in hand after outwitting two balky printers, and I overhear a man telling a woman, “It was something to do with the plane coming in.”

Maybe a touch of skepticism, or maybe I’m over-thinking because I’m a little defensive since I’m the one who flew it in. Late.

“This flight’s late because of something with a plane in Dallas?” she asks.

And also, I’ve already taken a load of crap from the Number 4 flight attendant, urging me to take whatever shortcuts I can to speed up this turn-around so she won’t miss her 2-day New Orleans trip, which she really wants to do.

I want to un-hear that: I don’t take any shortcuts, ever, and it’s difficult for me too–I have a life, and a body clock that doesn’t care for flying after midnight. But that’s the captain double-down: tired, late–you don’t rush, you take extra care to not mess something up.

“The jet we were supposed to fly out of DFW took a few birds in an engine on their approach,” I interrupt, breaking my own cardinal rule of maintaining invisibility, “So we had to swap planes.”

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“Oh,” she says, still not sounding convinced. I can’t really blame her for that, because it does seem like a pretty simple thing, a swap, right?

You tell me.

Flashback: I meet the inbound crew as they deplane. This is where captains exchange a look that usually tells the story. Normally, at that moment, the captain handing over the aircraft says something preemptive like, “Good jet.”

This time, silence. Then the “other” look. “We hit a bunch of birds on the approach.”

Crap.

“Where?” I ask.

“Mostly the nose.” Mostly. I know what that means. I have to ask.

“Any adverse engine indications?”

He shrugs. “Not that we noticed.” Good–maybe it’s just a guts clean-off and a thorough exterior inspection.

But I know better. “Well,” I say, making a lame attempt at levity, “that’s what they get for indiscriminate flocking.”

He laughs weakly, giving me a “you’re screwed” look as he walks off. Guess I’ll save the “canary-al disease” joke for another bird strike.

I drag my flight gear down the jet bridge and park it near the door to the ramp. Down the stairs to the ramp, then over to the nose gear.

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Yup–bloody skid marks, guts on the strut. But not a real problem. Two maintenance techs are already on the ramp, flashlights in hand, meaning they’d just done a close-up inspection of an engine. One is shaking his head. Crap.

He jerks his thumb toward the right engine. “It took a few,” he says.

CFM 56 N1

I check for myself: shiny spots on the huge N1 fan blades, meaning they’d been “shined” by a semi-soft impact at 30,000 RPM and 160 mph. Some down-ish debris in the first and second stages, and the final clue, the exhaust area smells like burned kerosene and rotisserie chicken. Actually, the latter makes me a little hungry.

“Well,” I ask, “what do you think?”

One tech shakes his head. “They’re probably going to have us bore-scope the engine. But even if we don’t, it’ll take at least an hour or more to get inside to make sure there’s no debris blocking the oil cooler.”

Or any of the other gazillion probes and moving parts. The engine can eat birds no problem, but it’s the fine tolerances for moving parts and intakes that demands close inspection: even dust-fine volcanic ash can trash a jet engine.

My internal clock calculator runs: it’ll take a few minutes for the techs to report their findings to Maintenance Control in Tulsa. Give them fifteen more minutes to come up with a plan: clean? Clean and bore scope? If the former, expect a 1:30 delay; the latter means taking the aircraft out of service.

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I could be fine with the first option if the two mechanics are (any of them who haven’t been laid off are super-experienced) but if I were Tulsa I’d insist on the second–and I’m sure they will.

So I’ll shortstop this by calling Flight Dispatch.

“We haven’t been notified of an engine problem yet,” he says, sitting in the War Room two miles south of the airport. “But I’ll  go talk to the equipment desk to give them a heads-up.”

They’re the folks–also in the war room–who reassign jets to meet needs such as this. The ramp crew is milling around with questioning looks: do we load bags and cargo, only to have to unload and reload them on another? That takes time.

The techs shrug. “We have to call Tulsa.” They head for the jet bridge phone.

“Just hold off,” I tell the Crew Chief, rolling the dice. If I’m right, this will speed the process of switching planes. If I’m wrong, we’ll be late and it’ll be my fault. But I’m betting that once Tulsa works their decision tree and passes it along to the Equipment Desk, we’ll be getting assigned to a new “tail number.”

flash

Back up to the gate podium where my crew is milling around, trying not to act like they’re dreading their 10 hour workday going to twelve or more. I am too.

“I’m betting on a change of aircraft,” I tell them. “I’ll let you know.”

“Can you call catering?” our Number One asks. “I don’t want to have to do a First Class meal service with the leftovers from some other catering.”

“Sure,” I answer. We can take whatever extra fuel there is on board, though I make a note to subtract the max landing weight and fuel burn first, but she wants to do a decent service.

I type the code for our flight into the computer and instead of departure time, it says “DCN 13:40.” Good–that means Tulsa has put a maintenance hold on the flight, saying they’ll have a “decision” by 13:40. We’re supposed to push at 14:05, so we know this one’s going “off-schedule,” but at least the Equipment Desk can line up a spare.

We’re at pushback time. I call Dispatch back. “Any word yet?”

“No,” he says, “but call me back in ten minutes and maybe they’ll have something for us. But I do know they’ve burned all the 737 spares today.” Meaning there have already been several maintenance swaps today. Some days are like that, and it has more to do with the birds’ bad planning than the airline’s.

Some of the more than 40 jets damaged by hail in the storm, awaiting inspection and repair.

That elicits a line of people asking if they can be put on another flight. I say nothing, but would warn them that they’ll end up standby on a later flight–better stick with this one. Glad I’m not an agent, because people are demanding to know what we don’t know ourselves: decisions are unfolding, not some hidden secret.

My cell phone rings: Flight Dispatch. “Looks like the Equipment Desk is stealing the 6 o’clock’s bird. It flew in from LaGuardia.” That means a later flight will be delayed outbound. But likely, that’ll be a flight terminating at its destination, not bringing back 150 people (for a total of 300 waiting on this one, counting both legs) as we are. “It’s two gates down.”

It’s not official yet, and I don’t want to start a stampede. But I can get down there and determine what we need on board, plus get the F/O busy preflighting the aircraft. “Looks like gate A-17,” I tell the Number One quietly. I remember the call to Catering, but they can’t start swapping until the word filters down.

gate area 1

The pilot’s signature date in the new aircraft’s logbook is yesterday–Dispatch says it flew in from LGA. Did the captain forget to sign it? Or has it not flown yet today? If the latter, that means a longer origination preflight rather than just a quick through-flight checklist.

“Just do the full origination,” I tell the F/O, who’s already grouchy, but too bad. Better safe than sorry. “I’ll do the outside,” I tell him, throwing him a bone. I actually like the outside–I like the jet, it’s beautiful: high wing, graceful 7′ winglets. The smell of jet fuel–and I’m still thinking wistfully of rotisserie chicken.

Two gates down, I see the catering truck pull up to our old jet. Good–that means that if the catering company has gotten the word, the assignment is official so now I can get a new flight plan (they are aircraft specific) and flight release from the computer on board and the paperwork from the gate printer. Time to wrap up the exterior admiration and get the release done upstairs.

catering1

As I fold up the new flight plan, up stairs in the terminal, a young woman, a passenger, approaches me haltingly.

“Can I ask you a question?”

“You just did,” I answer, then kick myself: a nervous flyer, stupid. You’re such a smart ass.

She brushes it aside. “Is it dangerous when birds go into an engine?”

“No,” I answer honestly. “Not unless they’re really huge. The inbound crew didn’t even notice any engine effects.” I consider telling her about the homey baked chicken smell wafting from the tailpipe, but I shut up.

 

I fold my stack of flight paperwork and head for the cockpit as boarding starts. The door warning panel shows both cargo doors open, which means they’re at least loading stuff–I can hear the tumult of bags and cargo from the forward hold–and the aft catering door is open, so at least that swap is underway, too.

lights doors

We finish our preflight, verify the route and refile an ATC clearance twice before the ATC computer accepts us, having timed out the original clearance.

The F/O is grumpy again because I overruled the high Mach number he wanted to use at cruise. But that makes little sense: we’re pushing back an hour and twenty late; the higher Mach number might shave 5 minutes off, but for a thousand pounds of fuel? Really? I’m all about arrival fuel, which means time and options.

“You ready for me to close up?” the agent asks, poking his head into the cockpit.

“Not yet.” I have one eye on the fuel totalizer–they’re still pumping fuel aboard, and that requires at least one escape path for passengers in case of fire. And it’s pumping slowly.

fueling 1

Finally, the total reads 19,400 pounds. “Go ahead, pull the bridge,” I say.

With the jet bridge gone, the ground crew begins our pushback. Going to be late into the west coast, even later back here. After midnight, driving home.

Worry about that later–there are over two thousand miles and an equal number of details to be managed to exacting standards between now and then.

Back to the present.

“Why does a simple airplane change take so long?” the woman on the jetbridge repeats.

I’m back to my cloak of invisibility, heading for the cockpit. You explain it to her, I tell her travel companion, in my head. I still have one more set of everything to accomplish before we all get to drive home.

sunset crz

Summer Weather, Flight Delays and YOU.

Posted in air travel, airline, airline delays, airline pilot blog, airport, fear of flying, flight crew, flight delays, passenger, travel, travel tips, weather with tags , , , , , , , , , , , on May 29, 2013 by Chris Manno

fll sunsetYou can see the weather plain as day. But it’s miles away, right? How could that cause flight delays? Or worse, on a day that’s clear at the airport–yet your flight shows a one hour or longer departure day. Why?

Think big–or at least think far: miles translate into minutes in the air, and unlike your car on the freeway, we’re not creeping along under the storm–we have to get through it. At altitude, sure, we can go around weather or sometimes, even over a storm. But there’s the problem on take-off and landing: we are too low to do either.

First, let’s look at departure:

wx radar departure

Sure, the weather is nearly twenty miles away. But in flight time, we’re talking about maybe three minutes. Then what?

Normally, there are at least six eastbound routes available, but as you can see, due to the weather that extends from the north to the south, even twenty miles away, there are only two routes available to go east: straight north, or straight south. And guess what? They’re the same ones that will have to be used for the inbound aircraft–and they’re already in the air, many for over three hours inbound from the east coast, or up to nine hours from Europe. Guess who rightfully has priority on the clear routes?

Here’s more bad news for your outbound schedule:

lowgn4All of the departures–like the one pictured in above, and depicted on the navigation display with the radar image above–have very specific instructions for headings, altitudes and even speeds. But with the weather blanketing the area, no jet can comply with these very orderly instructions, so instead, air traffic controllers have to issue all headings and altitudes individually to each aircraft, checking to be sure that weather doesn’t interfere.

So the Air Traffic Control system must space jets by ten, sometimes ever twenty miles in trail to allow for the individual handling required, which means that instead of the usual interval of thirty seconds to a minute between launches, now takeoff will have to be 2-3 minutes in between.  You’re number ten for take-off? Count on at least 30 minutes, maybe more–especially if the weather arrives over the field while you wait.

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So, rather than have a traffic jam at the end of the runway waiting to take off, ATC issues all aircraft an “EDCT” (Expect Departure Clearance Time), or “edict,” as the acronym is typically mangled by crews, or even “wheels up time” in more common usage. This can usually mean an Air Traffic Control imposed delay on your pushback from the gate of forty-five minutes to an hour or more.

That presents another problem: while a delayed flight is held on the gate, the next aircraft scheduled for that gate will be delayed as well, either in the deplaning of passengers or the boarding of its next segment. At a major hub for any airline, there aren’t enough extra gates to make up for flights that must be held on their departure gates. If you arrive at the terminal and notice about double the normal amount of passengers milling about–that’s why: their outbound jet is waiting while a delayed flight sits on the gate, waiting for its EDCT time to roll around.

That’s what happens on the ground–here’s what happens in flight–which actually contributes to the confusion and delays on the ground.

wx radar arrivalSee the racetrack pattern near “CAPTI?” That’s where we’re going to be holding, hoping the weather clears within our allotted holding fuel, which is about 45 minutes. The airport is under the blob of storms at the convergence of all the lines.

The jet we’re flying is being ardently awaited at DFW by 160 passengers who plan to fly on it to LAX after we deplane our Dulles passengers at DFW. But, we’re now on our way–diverting–to New Orleans because DFW is still closed and won’t open for at least an hour.

Add to that the fact that my copilot and I started our flight day at 12:35pm. We leave New Orleans at 11pm, but have to fly all the way to Abilene before we can turn back to the east around the scythe of thunderstorms bisecting Texas. What’s normally a one hour and ten minute flight turns into two and a half hours, pushing my first officer to a 14 hour flight duty day, landing at 2:15am.

Not sure what happened to all the LAX-bound folks, whether they got a crew to fly the leg or not, or what happened to the connecting passengers on our flight arriving after 2am.

All I know is that this promises to once again be another season of crowded skies, summer storms, bone-achingly long flight days and above all, a challenge to everyone’s fortitude and patience. Now that you know the “what and why” of the weather story–maybe you could explain it to the guy seated next to you, wondering why everything is so messed up because of a little old storm?

ramp DFW

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