Seat Belts: Airplanes AND BUSES

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  • Does the Cutting Edge Cut too Far?

    Bombardier is promising their new C series planes will “cut greenhouse gas emissions, ensure substantial fuel savings and be four times quieter .

    Let’s hope all these cuts don’t also sacrifice safety along with heavier materials. As far as safety is concerned, will the new planes made of “lightweight composite and aluminum lithium materials, built to accommodate stricter environmental standards and” well-built airplane(s) … capable of withstanding turbulence” be sacrificing the safety of sturdier construction and time-tested safety features to reach optimistically green standards?

    How will these new lighter planes fare when subjected to unexpected turbulence, which is commonplace in realistic day to day flying conditions? I have no answers, only questions.

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  • Air France: Frozen Air Speed Indicator?

    George’s Point of View

    Yet another theory:

    Problems with airspeed indicators led to excessive speed for the Air France A330, triggering the sequence of events leading to the crash. Blame it on pitot tubes. If the pitot tubes froze up during the storm, pilots would get mis-readings on their speed, accelerate, and subject the plane to stresses the structure was unable to withstand.

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    Deflated Freight Flight Shuts Down Runway


    Click to view full size photo at Airliners.net
    Contact photographer Marcelo Magalhaes

    What: Varig Logistica Boeing 757-200 freighter en route from Manaus to Sao Paulo
    Where: Manaus
    When: Nov 10th 2010
    Who: 2 crew
    Why: While lining up for departure, a freighter loaded with 30 tons of goods to Sao Paulo got stuck on the runway when two main gear tires deflated. Rain and the beached plane effectively disabled most of the runway for several hours.

    George’s Point of View

    Maintenance, Maintenance, Maintenance
    I find the timing of this incident extremely ironic, when noticing that today we have also received and published a press release highlighting how the “Goodyear Expert Cites Tips for Proper Aircraft Tire Maintenance,” a press release showcasing a Goodyear Tires Product Support Manager’s Tire maintenance manual. It even has photo sections for aviation “tire whisperers” who want to recognize what happened to a tire by the visible damage.

    You would think that we would know tires get flat by now, if only from our experience of all the cars on the road.

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  • The Headlines Say Sullenburger is Returning to the Cockpit.

    George’s Point of View

    It’s published so it must be true. Capt. Chesley “Sully” Sullenberger–hero of the Jan. 15 Airbus A320 miracle landing on the Hudson–is going to be part of US Airways Flight operations safety management team. This means he’ll be handling regular flights and also they’re giving him a suit and making him management. (Or would that be the uniform with the really shiny epaulettes?)

    Never has anyone deserved recognition more.

    Do you hear us Sully? We’re still applauding.

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    Automated Cockpit Props up Undertrained Pilots

    The Asiana investigation continues.

    Back in July, the pilot who was insecure about making a visual approach in a 777 crashed at San Francisco International Airport on a visual approach in Asiana Flight 214’s Boeing 777. Specifically, he told NTSB investigators “it was very difficult to perform a visual approach with a heavy airplane.” The glideslope was not working at the San Francisco airport, and that was an instrument the (*undertrained) pilot was relying on. The plane came in so low the tail struck the seawall and broke off. The video below shows the plane rotate 360 degrees and catch fire by the runway.

    New Asiana Crash Video

    Video with news commentary

    Before impact, the relief pilot in the jump seat repeated several times “sink rate” trying to warn the pilots at the controls that the jet was too quickly losing altitude. One of the pilots said “It’s low.” Then there was a stick shaker alert (which occurs when the plane is about to stall from flying too slowly. I once had a pilot do a presentation that included the disturbing grinding of the stick shaker alarm as it violently vibrated the control yoke. It’s an alarming direction to the pilots to increase thrust.)

    When the stick shaker went off, the instructor called for a go around. It went off four seconds before impact. It was too late.

    Both the instructor and the captain were relying on the auto throttle, and both were unaware it was off.

    In George’s Point of View

    I do not know how anyone can watch the surveillance video of the Asiana crash and not marvel that of the three hundred and seven people aboard the plane, there were only three deaths.

    I’m not discounting the wounds of the injured, nor those three deaths, nor the tragedy of one of the teen victims being run over by an airport crash tender. (That’s a whole tragedy by itself—who knows if she might have survived but for being so obscured by foam that she was not visible to crash responders—through the firemen who carried her out surely must have known she was there.)

    A dozen critically injured, a hundred-sixty-nine injured, but only three deaths.

    It’s nothing short of a miracle. Especially on inspecting the condition of the burned out shell of the hull. Especially on reviewing the just-released surveillance video that shows the plane splintering after impacting the firewall, cartwheeling like a crippled gymnast down the runway and dissolving into a cloud of dust and flame. No jet fuel fire here——leaking oil ignited as it poured on to a hot engine.

    The Kazan crash (Tatarstan Airlines Flight 363) from November 17th is fresh in my mind. Everyone aboard–fifty people (forty-four passengers and six crew) all died. The plane just fell from the sky while landing at an impossible 75-degree-nose-down attitude, piloted by a pilot whose license is apparently fake. Everyone in that crash died. (Tatarstan surveillance below.)

    Of course one can see the physics—that everyone on the Tatarstan flight received the full direct impact, versus how the rolling of the Asiana plane dispersed some of the impact energy. Still, there is tremendous force in a crash.

    I know I should be talking about pilot training, because this is yet another crash that appears to be due to pilots becoming too dependent on technology. But I will focus on that another day. Right now, I am overwhelmed after looking at the crash tape.

    Asiana—Cartwheeling Catastrophe
    I am surprised that I have neither heard or seen choruses of amazement that all but three people survived the rolling catastrophe in San Francisco. Some credit should perhaps go to the rescue crew, quick actions of the cabin crew, performance of the emergency slides, and maybe even the aerodynamics of the 777 whose seats are required to withstand 16g of dynamic force.

    Sure, there was error involved in this crash, but when you look at the survival rate, some credit is due to the 5.5 billion Boeing put into research, development and safety of the 777.

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    Virgin Aborted Takeoff–Etc…

    A Virgin Airlines flight taking off from Canberra aborted takeoff to avoid an incoming flight viewed by other passengers crossing in front of them to the left. Noteworthy is a report that the Virgin Airline pilots hit the brakes when ATC said “Actually, stop, because we’ve decided we’ll let this other aircraft land first and then you can take off.” Another non-collision is a good thing; as nerve-wracking as a rejected take-0ff can be, obviously it’s better than the alternative.

    Boeing studies indicate one in 2000 takeoffs are aborted, though early rejected takeoffs may not always be reported.

    A 1992 Takeoff Safety Training Aid Aid by the FAA says that

    • More than half the RTO accidents and incidents reported in the past 30 years were initiated from a speed in excess of V1.
    • About one-third were reported as occurring on runways that were wet or contaminated with snow or ice.
    • Only slightly more than one-fourth of the accidents and incidents actually involved any loss of engine thrust.
    • Nearly one-fourth of the accidents and incidents were the result of wheel or tire failures.
    • Approximately 80 percent of the overrun events were potentially avoidable by following appropriate operational practices.

    For passengers, the terrors of flight are certainly eased when there is some explanation to go along with the crisis. Perhaps a lack of narration can be forgiven if the pilot has his hands full averting a would be crisis. Still, a couple of word scan be very comforting and enlightening.

    Personally, I can say this:

    Molly and I experienced a aborted takeoff from Athens.

    We were past the half way mark for sure and later were told the pilot had a warning light.

    The plane came to a screeching halt taking maybe 45 seconds or more to bring it to a halt.

    It is a scary situation, especially since the crew in the cockpit are dealing with whatever needs to be handled and we passengers are told NOTHING.

    Maybe daredevils and roller-coaster enthusiasts would get a kick out of it, but it was a kick I’d have just as well gone without.

    The plane was filled with people. We all weathered it pretty darn well. I heard no screams or crying, but they’d have had to be pretty loud, because my own heartbeat drowned out everything else. I’m sure there were a lot of rapid heartbeats that moment in that plane.

    But I am here now, thanks to that pilot and crew handling a situation they might not even have called a crisis.

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