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Pilots unable to correct for faulty sensor that sent Indonesian flight plunging into the sea, report
Source: Washington Post
Pilots unable to correct for faulty sensor that sent Indonesian flight plunging into the sea, report says
By Stanley Widianto, Ashley Halsey III and Aaron Gregg November 28 at 6:30 AM
JAKARTA, Indonesia — A malfunctioning sensor and an automated response from the aircraft’s software stymied pilots’ efforts to control a doomed Indonesian flight that went careening into the sea, according to a preliminary investigative report released Wednesday.
The report, which stops short of determining the cause of the crash or analyzing findings, chronicles the chaotic moments on the Lion Air flight before it crashed into the waters off the coast of Java last month, killing all 189 passengers and crew on board.
It details how sensors and other equipment were checked and fixed before the aircraft’s final flight, but not the “angle of attack” sensor, which measures where the nose is pointing and was showing erroneous readings throughout the short time the plane was airborne.
With the sensor insisting the nose was too high, an automatic feature kicked in, sending the plane plummeting as the pilots wrestled to regain control. Unable to trust their readings, the pilots resorted to asking air traffic control what their speed and altitude were.
-snip-
By Stanley Widianto, Ashley Halsey III and Aaron Gregg November 28 at 6:30 AM
JAKARTA, Indonesia — A malfunctioning sensor and an automated response from the aircraft’s software stymied pilots’ efforts to control a doomed Indonesian flight that went careening into the sea, according to a preliminary investigative report released Wednesday.
The report, which stops short of determining the cause of the crash or analyzing findings, chronicles the chaotic moments on the Lion Air flight before it crashed into the waters off the coast of Java last month, killing all 189 passengers and crew on board.
It details how sensors and other equipment were checked and fixed before the aircraft’s final flight, but not the “angle of attack” sensor, which measures where the nose is pointing and was showing erroneous readings throughout the short time the plane was airborne.
With the sensor insisting the nose was too high, an automatic feature kicked in, sending the plane plummeting as the pilots wrestled to regain control. Unable to trust their readings, the pilots resorted to asking air traffic control what their speed and altitude were.
-snip-
Read more: https://www.washingtonpost.com/local/trafficandcommuting/report-on-airline-crash-that-killed-189-people-draws-few-conclusions/2018/11/27/a07b833c-f274-11e8-80d0-f7e1948d55f4_story.html
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