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**By APD writer Aditya Nugraha **
**JAKARTA, Oct. 25 (APD) - **Indonesia’s National Transportation Safety Committee (KNKT) revealed on Friday that it has identified nine combined factors that led to the crash of Lion Air JT 610 in October 29 last year.
The nine crash contributor factors were mentioned in the KNKT’s final report published one year after the crash.
“We found nine things that happened on that day contributed to the crash. If one of those things didn’t happen, the crash probably would not occur. Those nine things are attached to one another,” Head of air crash sub-committee at the KNKT Nurcahyo Utomo told a press conference here.
In general, the combined nine factors can be summarized into three, comprised of poor pilot training, plane design and maintenance issues.
The report mentioned that the crash occurred as the pilots were never told to quickly respond to malfunctions of the Boeing 737 Max 8’ automated flight control system known as MCAS.
The plane plummeted into Java Sea on its flight from Jakarta to Sumatra city of Pangkal Pinang 13 minutes after its take off, killing all 189 people on board.
“The investigation considered that the design and certification of this feature was inadequate,” the KNKT report said. “The aircraft flight manual and flight crew training did not include information about MCAS.”
Indonesia’s National Transportation Safety Committee said the automated system, known as MCAS, relied on a single “angle of attack” sensor that provided erroneous information, automatically shoving the nose of the Max jet down.
The KNKT said the plane was in use only for two months before the crash. It encountered flight problems in the last four flights, including one on the day before the crash when it flew from Bali to Jakarta.
The Indonesian report followed another last month from US federal accident investigators who concluded that Boeing and the Federal Aviation Administration underestimated how a blizzard of visual and auditory warnings would slow pilots’ ability to respond quickly enough to avert crashes.
Five months after the Lion Air crash, the same kind of malfunction caused the same type of aircraft to crash in Ethiopia, killing all 157 people on board.
The two crashes have led to the grounding of all Boeing 737 Max jets, putting Boeing under intense pressure to explain problems associated with the MCAS system.
(ASIA PACIFIC DAILY)
