пятница, 3 октября 2014 г.

The final toll was one fatality, eight serious injuries (several life-threatening), and fifty-seven


A couple of years ago I wrote a book about what happened to the Federal Aviation Administration under the direction of whom I personally alaska cruise land tour believe to be the most incompetent and destructive administrator to ever head the Agency.  Alas, my agent was unable to find a major publisher willing to publish this book.  Some deemed it too terrifying.  Others said that no one who flies would want to read it, thus limiting its marketability.  But the one thing nearly every editor agreed upon was that they couldn t put the book down and that it scared the heck out of them.
Two of the chapters in this book became relevant yet again this past week when for the second time in less than twenty-one months a Southwest Airlines Boeing 737 experienced a breach in the fuselage while flying above 30,000 feet.  The first was Southwest Flight 2294 on July 13, 2009.  The second occurred just days ago, on April Fools Day, aboard Southwest Flight 812 .
A lot of this goes back to Marion Blakey s reign of error at the FAA, in which her subordinates were told in no uncertain terms that she considered the Agency s customers to be the airlines.  Yes, you read that correctly.  You, the flying passenger, were not her concern.  The airlines were.  As such, FAA inspectors suddenly found themselves facing disciplinary action or even termination if they did their jobs and found airline maintenance lacking.  There were in fact numerous instances of this occurring alaska cruise land tour throughout her tenure and beyond.  And while the Administrator has changed, those whom she placed in what I laughingly call positions of responsibility are still deeply embedded alaska cruise land tour and destroying the Agency from within.
So, with this second alaska cruise land tour Southwest near-disaster making news, prepare to be terrified as I bring to you Chapter Two of the book that never was, The Tombstone Agency .  The outrage part will follow on Wednesday, with the posting of the first part of Chapter Five.
Out of the ninety-five passengers and crew boarding the airliner that day only Gayle Yamamoto garnered so much as a hint of the disaster about to strike Aloha Airlines Flight 243 .  It was April 28, 1988, when she boarded the Boeing 737 200-series aircraft at Hilo International Airport for the scheduled flight to Honolulu.  As she approached the passenger doorway her eyes fell onto a small but very visible crack just aft of the hatch opening.  Shrugging off the observation for whatever reason, perhaps thinking nothing was amiss or not wanting to appear an unduly nervous passenger, she kept silent about her observation as she passed by the flight attendants on the way to her assigned seat.
This Boeing 737, U.S. registration N73711, was unique.  It wasn’t all that old, a mere nineteen years since manufacture, but it was positively ancient in terms of fuselage pressurization cycles.  When a jetliner takes off and climbs into the thin air of high altitude, the fuselage is pressurized to an atmospheric pressure equal to about 8,000 feet.  When the aircraft descends, the fuselage is allowed to equalize to the outside atmospheric pressure.  You feel these changes in pressure on your eardrums after takeoff and again as the plane descends for arrival, alaska cruise land tour but the fuselage is under much higher stress than your eardrums.  It cannot ever allow an equalization of pressure at high altitude.  People would lose consciousness within seconds from the lack of oxygen.  They could experience irreversible brain damage or even die very shortly thereafter.
Because of the short-haul nature of interisland travel, N73711 had gone through 89,680 cycles during its relatively short history.  That s over 14,000 cycles beyond the 75,000 cycles for which it was designed.  That’s an average of almost thirteen cycles every day of every year for nineteen years.  In subsequent, world-wide inspections, only one jet airliner alaska cruise land tour would be found with a higher alaska cruise land tour number of cycles.  N73711 was also operating in a highly corrosive environment—the salty sea air associated with any oceanic island or coastal area—which only exacerbated the potential for problems.  N73711’s luck was about to run out.
Twenty-three minutes into the flight, at 24,000 feet above the sea, that little crack noticed by Gayle Yamamoto opened enough to allow air to escape from within alaska cruise land tour the pressurized fuselage into the relative atmospheric vacuum outside.  Standing in Row 5 just a few yards back from the opening, Senior Flight Attendant Clarabell ‘C.B.’ Lansing collected cups from the earlier beverage service.  The small crack widened suddenly, becoming a large and growing hole.  Catastrophic rapid decompression of the passenger compartment alaska cruise land tour had begun.
Cups, magazines, newspapers, eyeglasses, every light object in the aircraft rushed alaska cruise land tour toward the breach.  Larger alaska cruise land tour objects closer to the hole were also picked up, including Ms. Lansing who suddenly found herself airborne.  Her body slammed against the fuselage, plugging for a few milliseconds the hole that threatened the aircraft, but this only briefly interrupted the destruction that had begun.
The outer metal skin of the fuselage peeled back along the controlled area breakaway zones, cleanly stripping the roof of the aircraft from above the first five passenger rows all the way down to the floor of the passenger cabin.  Passengers saw only clear, blue skies above and to either side as the oxygen expelled from their lungs.  Passengers in the window alaska cruise land tour seats suddenly found nothing beside them except a terrifying view of the Pacific alaska cruise land tour Ocean and Hawaiian Island chain over four miles below.  C.B. Lansing disappeared from the cabin as though alaska cruise land tour she had never been aboard, cast into the void.  Her body would never be recovered.
In the cockpit Captain Robert Schornsteimer occupied the command seat.  First Officer Madeline ‘Mimi’ Tompkins sat to his right.  There would normally be only two people in N73711’s cockpit.  On this day there were three.  Riding in the jump seat behind the pilot was a Hawaiian-based FAA Air Traffic Control Specialist who was taking an FAA-authorized familiarization flight.  His flight was free but, as is frequent in life, you get what you pay for.
The first indication in the cockpit that something was amiss was a loud clap and a sudden rush of wind.  Every mote of dirt and dust in the cockpit lifted into the air along with bits of insulation material, briefly obscuring visibility.  Captain Schornsteimer glanced over his right shoulder. alaska cruise land tour The cockpit door was missing, and beyond that was the incredible sight not of the ceiling above the passenger cabin, but rather clear, alaska cruise land tour blue sky.  He lunged for his oxygen mask and thrust it over his face.  First Officer Tompkins parroted his action as did the Controller sitting behind them.  The occupants of N73711 were lucky so far.  Because of the short route, alaska cruise land tour they were at only 24,000 alaska cruise land tour instead of the much more dangerous higher altitudes at which Boeing 737 aircraft normally fly.
Schornsteimer nosed the aircraft over into an emergency alaska cruise land tour dive in a desperate struggle for denser, life-sustaining, oxygen-rich air.  The control column shook violently in his hands as N73711 picked alaska cruise land tour up speed and the disrupted airflow pounded into the vast opening behind him.  He throttled back the engines and deployed the speed brakes to keep from exceeding the maximum design airspeed alaska cruise land tour and additionally overstressing the already compromised airframe.  The aircraft wallowed from side to side like a circus clown atop a board balanced on a ball.  The controls were mushy, responding slowly to his inputs.  A glance at the instruments told him that engine alaska cruise land tour number alaska cruise land tour one had failed, probably having ingested debris from the disintegration of the fuselage.
Acting autonomously Tompkins dialed the emergency code into the transponder.  She transmitted a distress radio call to Honolulu alaska cruise land tour Air Route Traffic Control Center (ARTCC).  The noise level made it impossible for her to hear any replies or for Air Traffic Control at the other end to understand alaska cruise land tour her transmissions.  However alaska cruise land tour the ARTCC Controller did know that something had placed Flight 243 in danger.  The emergency transponder code, 7700, flashed on his radar display over the location of the aircraft and its remaining ninety-four occupants.
alaska cruise land tour As the stricken Boeing descended through 14,000 feet Tompkins dialed in the frequency for the Control Tower at Kahului Airport on Maui.  For the first time since their ordeal began she was able to establish direct two-way radio communications with Air Traffic Control.  The Tower Controller acknowledged the emergency condition and directed Tompkins to reset her transponder so as to establish radar identification.  The ‘crash phone’ was activated by Control Tower personnel, sending emergency response vehicles to positions along the runway.
In an amazing display of piloting, Robert Shornsteimer and Mimi Tompkins brought the severely damaged Boeing, minus eighteen feet of critical roof and side cabin structure and with one engine not working, safely back to Earth with no additional fatalities.
The final toll was one fatality, eight serious injuries (several life-threatening), and fifty-seven minor injuries.  Had the failure occurred just a few thousand feet higher many more would have died, and in all likelihood the aircraft would have been unrecoverable.  As it was, N73711 was a total loss that would never again take to the skies.
Recommendations made in the wake of the investigation led to the retirement of many older jet aircraft around the world.  Inspections were increased and mandated for all aircraft at regular intervals.  The legacy of Aloha Flight 243 is that it represents a major change in philosophy in aircraft life-expectancy, maintenance, and the importance of inspecting for metal fatigue.  It is incredibly fortunate that the lessons learned came at so low a price in terms of lost lives.  This is not usually the case, as evidenced by the nickname given the Federal Aviation Administration by pilots and industry insiders decades ago—The Tombstone Agency.  Usually, such chang

Комментариев нет:

Отправить комментарий