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Plane That Crashed in Taiwan Had Trouble in Both Engines, Agency Says Pilots in Taiwan Plane Crash May Have Shut Down Wrong Engine, Investigators Say
(about 3 hours later)
HONG KONG — The plane that crashed this week into a river in Taiwan’s capital, killing at least 35 people, was having problems with both of its engines before the crash, Taiwan’s Aviation Safety Council said Friday. HONG KONG — A finding by safety investigators suggested on Friday that pilots of the twin-propeller plane that crashed in Taiwan's capital, killing at least 35 people, may have reacted to a stalled-engine alarm by shutting down the wrong engine.
TransAsia Airways Flight 235, which had just taken off from the airport in Taipei, the capital, bound for the outlying island of Kinmen, struck an elevated roadway before slamming into the Keelung River shortly before 11 a.m. Wednesday. With both engines stopped, the suddenly powerless plane, TransAsia Airways Flight 235, which had just departed the Taipei airport a few minutes before 11 a.m. Wednesday, dived, clipped an elevated roadway and plunged into the Keelung River.
Thirty-five of the 58 people on the flight are confirmed to have died, including both pilots. Eight people were still unaccounted for as of Friday afternoon. The finding by Taiwan's Aviation Safety Council, based on cockpit voice and flight data recorders, was preliminary and did not assign blame. It showed that the pilots had been discussing shutting down the plane's No. 1 engine after the cockpit alarm sounded.
Shortly after the plane took off, a cockpit warning sounded, and the pilots began discussing procedures for shutting down the No. 1 engine, the Aviation Safety Council said, citing preliminary findings from the cockpit voice and flight data recorders. The plane’s No. 2 engine stalled, and power to the No. 1 engine was shut down, the Aviation Safety Council said. The plane’s No. 2 engine stopped just as power to the No. 1 engine was shut down, the Aviation Safety Council said.
The safety council stopped short of placing any blame in the disaster and said it would continue to investigate the cause of the engine problems. But aviation experts said the engine data suggested the pilots had misidentified which engine was malfunctioning. Thirty-five of the 58 people on the flight, which was bound for the outlying island of Kinmen, are confirmed to have died, including both pilots. Eight people were still unaccounted for as of Friday afternoon.
The safety council said it would continue to investigate the cause of the loss of power to both engines. But aviation experts said the engine data suggested the pilots had misidentified which engine had malfunctioned.
“They had a misconception about which engine failed, and they shut down the good one,” said David Learmount, the operations and safety editor at Flightglobal, an online publication that covers the aviation industry.“They had a misconception about which engine failed, and they shut down the good one,” said David Learmount, the operations and safety editor at Flightglobal, an online publication that covers the aviation industry.
The pilot, Liao Chien-tsung, 42, has been widely praised for avoiding buildings in Taipei’s dense urban center as the plane plummeted to earth. He had nearly 5,000 hours of flying time, including 3,400 on ATR 72 model planes, and the co-pilot Liu Tse-chung, 45, had nearly 7,000 hours of flight time, including 6,500 on ATR 72s, according to Taiwan’s Civil Aeronautics Administration. The pilot, Liao Chien-tsung, 42, has been widely praised for avoiding buildings in Taipei’s dense urban center as the plane, an ATR 72, plummeted to earth. He had nearly 5,000 hours of flying time, including 3,400 on ATR 72s, and the co-pilot Liu Tse-chung, 45, had nearly 7,000 hours of flight time, including 6,500 on ATR 72s, according to Taiwan’s Civil Aeronautics Administration.
At 10:53 a.m., one of the pilots broadcast an emergency communication to the control tower. “Mayday, mayday. Engine flameout,” the pilot said, signaling a loss of power. The black box recordings end a minute later, the agency said.At 10:53 a.m., one of the pilots broadcast an emergency communication to the control tower. “Mayday, mayday. Engine flameout,” the pilot said, signaling a loss of power. The black box recordings end a minute later, the agency said.
Dashboard camera videos from vehicles that were traveling along the elevated roadway show the ATR 72-600 narrowly avoiding buildings as it descends, then banking violently before crashing. The twin turboprop is capable of flying on a single engine, which has led analysts to conclude that it probably suffered problems with both engines.Dashboard camera videos from vehicles that were traveling along the elevated roadway show the ATR 72-600 narrowly avoiding buildings as it descends, then banking violently before crashing. The twin turboprop is capable of flying on a single engine, which has led analysts to conclude that it probably suffered problems with both engines.
The Aviation Safety Council announcement Friday was a preliminary announcement of the findings from the cockpit voice and flight data recorders. It could be a year or longer before the investigation’s final conclusions are released.The Aviation Safety Council announcement Friday was a preliminary announcement of the findings from the cockpit voice and flight data recorders. It could be a year or longer before the investigation’s final conclusions are released.
The accident Wednesday was the second deadly crash in less than seven months for TransAsia Airways, Taiwan’s third-largest airline. An ATR 72-500 hit a building while landing in stormy weather on an outlying island in July 2014, killing 48 people.The accident Wednesday was the second deadly crash in less than seven months for TransAsia Airways, Taiwan’s third-largest airline. An ATR 72-500 hit a building while landing in stormy weather on an outlying island in July 2014, killing 48 people.