飛安會今天公布今年2月4日墜入基隆河的復航失事事故報告，報告指出，民國104年2月4日，復興航空公司GE 235航班，機型ATR72-600，國籍標誌及登記號碼B-22816，當天上午由台北松山機場飛往金門尚義機場，10時52分43秒，主飛駕駛員說：「我把一號發動機收回來」，報告駕駛員回答：「等一下 cross check」，將油門位置紀錄由75度收至66度，但10時54分27秒，當航機高度飛到309呎、速度105浬時，駕駛員已經發現問題，說：「哇油門收錯了」，發現之後8秒鐘就墜入基隆河。
事件發生後，飛安會依飛航事故調查法及相關程序展開調查作業，邀集交通部民用航空局、法務部法醫研究所、國防醫學院三軍總醫院、復興航空公司等國內機關（構），及法國失事調查局（BEA）、ATR航空器製造公司（ATR）、加拿大運輸安全委員會（TSB）、發動機製造公司（Pratt & Whitney Canada）、美國運輸安全委員會（NTSB）、發動機螺旋槳控制設備製造公司（UTAS）等團隊組成調查專案小組。
The captain of a TransAsia Airways ATR mistakenly switched off the plane’s only working engine seconds before it crashed in February, killing 43 people, Taiwan’s Aviation Safety Council (ASC) said in its latest report on Thursday.
The ASC’s report also showed that Captain Liao Jian-zong, who was at the controls, had failed simulator training in May 2014, in part because he had insufficient knowledge of how to deal with an engine flame-out on take-off.
“Wow, pulled back the wrong side throttle,” Liao, 41, was heard to say on voice recordings seconds before the crash.
There appeared to be confusion in the cockpit as the two captains tried to regain control of the plane after the other engine lost power about three minutes into the doomed flight.
Liao reduced the throttle on the working engine but did not appear to realise his mistake until it was too late.
He tried to restart the engine before a junior first officer, who was also in the cockpit as part of his training, said: “Impact, impact, brace for impact.”
Those chilling words were the last heard on the data recordings, according to the latest report of the ASC’s investigation into the crash, which happened on 4 Feburary in clear weather.
Seconds later the ATR 72-600, which had 58 people on board, crashed upside down into a shallow river in downtown Taipei after it lurched between buildings, clipping an overpass and a taxi. Liao was not among the 15 people who survived.
A source with direct knowledge of the report told Reuters on Wednesday that the working engine had been shut off. Data readings showed the almost-new turboprop ATR 72-600 stalled and crashed shortly after it was switched off.
TransAsia had no immediate comment about the latest findings but was due to hold a media briefing later on Thursday.
The ASC report, which neither assigns responsibility nor suggests recommendations for improvement, paints a more detailed picture of the evidence than a preliminary report released days after the crash.
The investigation so far has shown that Liao, a former air force pilot, began to fly commercial aircraft in 2009 and joined TransAsia the following year. He was promoted to captain in August 2014 and joined the ATR 72-600 fleet in November.
He had a total of 4,914 flight hours at the time of the crash, including 3,151 in the ATR 72-500 and 250 hours in the ATR 72-600.
However, the report showed that Liao failed the simulator check in May 2014 when he was being evaluated for promotion. Assessors found he had a tendency not to complete procedures and checks, and his “cockpit management and flight planning” were also found wanting.
He passed after a second simulator check in June and was promoted to captain, although similar problems were detected during training in July last year.
Instructors commented at the time that he was “prone to be nervous and may make oral errors during the engine start procedure”, and displayed a “lack of confidence”, the report shows.
Issues cropped up again during training for the ATR 72-600 in November, when an instructor said Liao “may need extra training” when dealing with an engine failure after take-off.
Since the crash, Taiwan’s Civil Aeronautics Administration has put all 55 of TransAsia’s ATR pilots through oral proficiency tests on how to handle an aircraft during engine failure.
All but one of the pilots passed the tests, although some needed more than one attempt. The lone failure was demoted in rank to vice-captain from captain.
A draft of the final report will be issued in November with the final report to be completed in April 2016, the council said. The cause of the crash and recommendations for the future will be included in the final report.