It has been nearly a year since the release of the Factual Data Report on the TransAsia Airways Flight GE235 Accident. The Aviation Safety Council has published an extremely detailed Final Report. After spending over an hour reading through it, here are some excerpts of new facts.

The accident was attributed to numerous factors, ultimately causing the aircraft to lose control due to a Stall.

During the initial Climb phase after takeoff, an intermittent circuit discontinuity occurred within the No. 2 engine’s Auto Feather Unit (AFU), which initiated the Automatic Takeoff Power Control System (ATPCS) procedure, resulting in an uncommanded auto-feather of the No. 2 engine propeller.

At that moment, the flight crew failed to strictly execute the abnormal and emergency procedures specified in the manual to identify the failure, nor did they perform necessary corrective actions as per procedures. Consequently, the Pilot Flying (PF) mistakenly retarded the throttle of the still-functioning No. 1 engine and eventually shut it down.

During the initial Climb phase, the aircraft lost Thrust. Under the improper operation of the PF, a series of Stall warnings occurred, including stick shaker and stick pusher.

After the No. 1 engine was mistakenly shut down, the flight crew failed to promptly detect that both engines had lost power and restart the No. 1 engine in time. They also failed to make rapid and effective corrections for the Stall warning.

During the engine restart attempt, the aircraft Stalled and continued to lose altitude.

Prior to impact, the altitude was insufficient to successfully restart the engine and recover from the out-of-control situation.

Regarding the AFU circuit discontinuity, the following explanation is provided:

4 seconds after the aircraft began the takeoff roll at 1051:39 (1051:43), the Pilot Monitoring (PM) mentioned that the Automatic Takeoff Power Control System (ATPCS) was not armed.

The PF replied “Is that so?” and then responded “Okay, continue takeoff,” to which the PM replied “We continue.”

7 seconds later, the PM called out “Oh there is, a-t-p-c-s armed,” and the aircraft lifted off at 1052:01.

Regarding the pilots’ qualifications, the following explanation is provided:

Captain A was of the Republic of China (Taiwan) nationality and