Since the goal of accident investigations is to find out what went wrong to prevent the next one, are there lessons to be learned from what went right? Safety experts say yes. I’ve put together a list of near-tragedies and asked people in the know what factors they believe contributed to a happy ending. Feel free to comment with your own.
November 14, 2009 Frontier Airlines flight 820
When she heard the airline pilot call “Mayday, Mayday, engine number two is out, we hit some birds,” air traffic controller Jessica Hermsdorfer was not thinking about the Miracle on the Hudson. She could think only of the alarm she heard in the pilot’s voice, and how
she could direct him back to the Kansas City airport for an emergency landing as quickly as possible.Inside the Airbus 319 passengers had no idea what to expect. Shortly after takeoff the plane hit a flock of snow geese, causing to damage both engines. Passenger Joe Suina said he heard “this rumble “bang, boom, boom.” Sam Weisgal recounted that the passengers were calm, but terrified. “We’re all looking forward to death, literally.”
“I didn’t do anything different than I normally do,” Ms. Hermsdorfer told me describing how she handled the pilot’s distress call. “You know what to do. You do the same thing all the time the right way so you don’t have to question, ‘What is the right way?’”
Ms. Hermsdorfer cleared airspace and runways so that the pilots, Alan Lefler and Matthew Cartwright were able to land the airplane with no one injured. Ms. Hermsdorfer will be honored by the National Air Traffic Controllers Union this spring. In praising how she handled this near disaster, NATCA’s Brian Barnes said emergencies are routine for air traffic controllers. But for controllers and flight crews alike, Barnes says, preparation - anticipating potentially disastrous events is key to preventing them. “If you are well prepared, you know the procedures and you know what to do.”
May 7, 2008 Compass Airlines Flight 2040
Brian McCusker told reporters he’d never been as scared as he was when a fire broke out his flight from Minneapolis to Regina, Saskatchewan. There were 72 passengers on the plane as smoke started billowing from a bathroom in back. Pilots Steven Peterka and Lee Cain put on oxygen masks and declared an emergency.
While flight attendants tried to put out the fire, (one of them, Eder H. Rojas, would later be charged with starting the blaze) passengers fled the rear of the plane toward the front. The aircraft was flying at thirty-two thousand feet and the pilots realized they needed to get on the ground as quickly as possible. Capt. Peterka turned off the autopilot and banked the airplane hard in order to increase the descent rate. It took just eight minutes for the plane to make an emergency landing at the Fargo airport having come down at an astonishing 4,000 per minute more than twice the speed of a normal descent.
Officials later said that a “delay in descending and landing could have resulted in the loss of all 79 souls on board the aircraft.” Fire in flight is always extremely serious as illustrated by the crash of Swissair flight 111 on September 2, 1998.
In that accident, pilots first tried trouble shooting indications of smoke in the aircraft, a delay that might have contributed to the disaster. Two-hundred and twenty nine people died when the plane crashed into the sea.
Feb 3, 2006 Midwest Airlines Flight 8134
The thirty seven member New Jersey Devils hockey team was on board an MD-80 charter flight headed for Toronto. As the plane accelerated down the runway first officer, James Findley called, “Rotate” when the plane hit 127 knots. But Capt. Matt Klingsporn found he could not raise the nose of the airplane. Though he was beyond the speed at which a takeoff can safely be stopped, Capt. Klingsporn and Mr. Findley did just that. It was the right decision. The investigation showed that a jammed horizontal stabilizer made the plane unflyable. Findley credits training for helping the crew make the right decision with just a split second to react. "At that time, training took over," Findley told the Milwaukee Journal. "When you train, and you train, and you train, when something happens, you just react."
“Top of the list of factors leading to good outcomes,” according to Darren Gaines pilot, air traffic controller and air safety investigator, is “training.”
June 2, 2002 Fed Ex flight to Manila
“There is no checklist for ‘flap comes off of aircraft’" Mark Abbott told me and he was not joking. That is precisely what happened to a Fed Ex MD-11 he was piloting with Capt. Jim Almlie. The men did not know that a wing flap had torn free of the wing, severing a hydrolic line and jamming the spoiler in the up position as the plane approached landing at Subic Bay in the Philippines.
“We’re in a left bank I can’t control it,” Mr. Abbott said the captain told him. “ I was thinking, I must be in a dream I’m going to wake up. And it all happened in less than a second. The next thing I realize, this isn’t a dream.” For twenty minutes the men worked together, trying to figure out how to fly an airplane that wanted to roll topside down and get it to an airport where emergency equipment would be close by.
“Right after it happened, he was so busy trying to get control of the aircraft," Mr. Abbott said of the captain, "he said, ‘You handle the diversion.’ He realized, I’m going to fly the aircraft, you figure out where we’re going to land.” Certainly the pilots of the Fed Ex flight were heeding the mantra, "aviate, navigate, communicate" as they worked as a team. In addition, a crews’ “knowledge of the aircraft and its systems,” has saved the day many times, said Ira Rimson a forensic engineer and air safety expert.
Throughout these stories, aviation professionals stressed the importance of focusing on task. In the Frontier and USAirways bird strike events, air traffic controllers reported keeping their communication with the cockpit direct and not distracting. “Let them tell you what they need,” Ms. Hermsdorfer said of the pilots of the stricken airliner, “and then you get it for them.”
Finally, no discussion of disasters averted would be complete without a nod to the role of luck.
“Weather, if it’s good it definitely increases the chance of a positive ending,” Darren Gaines said, along with time of day, light and perhaps most importantly, a place to land.
Other near disasters worth noting:
- April 13, 2004, United flight 854 total loss of power on a Boeing 767-300
- January 10, 2010 United Airlines flight 634 collapsed landing gear
- June 9, 2005 USAirways near runway collision
- July 13, 2009 Southwest Airlines flight 2294 rapid decompression
- January 25, 2008 United Airlines loss of avionics, electrical and communication during take-off
No comments:
Post a Comment