Gear retracting when Emirates jet crashed; go-around thrust seen coming too late
September 7, 2016
The pilot in last month’s Emirates airliner crash while landing in Dubai tried to take off again after a brief touchdown and had already begun raising the landing gear when the plane hit the ground, according to preliminary findings released on Tuesday.
The accident destroyed the Boeing 777-300 but claimed no lives among the 300 passengers and crew, who scrambled out of the burning plane down just five usable emergency slides. One firefighter was killed in the struggle to contain the blaze.
It was the most serious accident in Emirates’ more than three decades of operations, and the second major air disaster for a Dubai government-backed airline in less than five months.
The findings released Tuesday in the 28-page report by the United Arab Emirates General Civil Aviation Authority were broadly in line with an Associated Press analysis a day after the crash into Flight EK521.
The report does not ascribe blame or attempt to determine precisely why the plane failed to successfully go around for another landing attempt on its return from Thiruvananthapuram, India.
However, it does suggest that the pilots did not manually throttle the engines beyond idle until 12 seconds after lifting back off — just three seconds before the plane struck the ground.
John Gadzinski, an airline captain and aviation safety consultant, described that as the report’s most puzzling finding.
“Why did the pilot think he was going to get full power from the engines operating them the way he did?” he asked. “Was it training, procedures, company policy, automation logic or simply skill?”
As the plane came in for its initial landing, the crew received a warning indicating wind shear, a sudden change in wind speed or direction, investigators found. Two other planes had already aborted their landings less than 10 minutes before the accident, though two others landed normally.
As the Emirates plane neared the ground, a headwind started to shift to a tailwind and then back again.
The right landing gear touched the ground first about 1,100 meters (3,600 feet) from the start of the runway. It would be three more seconds until the left gear followed, according to the report. The nose gear stayed in the air.
A warning system alerted the crew of a “long landing,” indicating that the plane had touched down farther down the runway than it should, and the plane took to the air again as the crew tried to make a second landing attempt.
Six seconds into the air, the crew began to retract the landing gear.
After making it only about 85 feet off the ground, the twin-engine plane began to lose altitude.
Three seconds before impact, the crew tried to push the jet engines all the way from idle speed to full power.
Cockpit warnings blared “Don’t sink, don’t sink!” as the engines began to throttle up.
It was too late.
With the landing gear still retracting, the back of the plane and then the engines hit the runway at 125 knots (144 mph).
A fuel-fed fire broke out as the right engine ripped off and the plane skidded on its belly before coming to a rest. About nine minutes later, a fuel tank in the center of the plane exploded, killing firefighter Jassim al-Balooshi. The fire spread into the airplane cabin.
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