Aerospace
Failure to fix throttle led to Indonesia plane crash that killed 62: Report
Report on the #Sriwijaya Air crash, which killed 62 lives.
Investigators in Indonesia’s aviation industry came to the conclusion on Thursday that a Boeing 737-500 tragedy last year that killed 62 lives, a nearly decade-long to properly repair a malfunctioning automatic throttle, pilots’ overreliance on the plane’s automation system, and inadequate training contributed to the crash.
The automatic throttle issue with the Sriwijaya Air jet, which had been reported by pilots 65 times since 2013 and had not yet been resolved when the 26-year-old aircraft crashed into the Java Sea after taking off from Jakarta on January 9, 2021, according to the final report by the National Transportation Safety Committee’s investigators.
As it got closer to the target altitude, the plane needed less engine push, but mechanical friction prevented the automatic throttle from turning down the power of the right engine.
The left engine’s power was further reduced, down to 34%, using the automatic throttle in an attempt to make up for the loss. The power of the right engine stayed at its climb level, or around 92%, resulting in drastically unequal thrust, based on the report. The airplane tumbled onto its left side as the pilot struggled to get it up in the air but was unable to recover from the position.
After a minute, the flight recorder revealed that the automated throttle had been deactivated as the aircraft descended. A little while later, the recorder stopped recording.
Pilots can utilize the automated throttle to set the speed automatically, lessening their strain and engine wear in the process. 13 other plane parts are connected to the automatic throttle’s movements.
Numerous issues that contributed to the tragedy were exposed in a preliminary assessment released by Indonesian officials last year. New information on how the pilots responded to them was included in the final report that was issued on Thursday.
