The Boeing 737-222 aircraft disintegrated in midair and crashed in the township of Sanyi, Miaoli.

[1] The aircraft had previously lost cabin pressure on 5 August; and earlier on the day of the crash, it had departed Songshan Airport, but the crew aborted the flight 10 minutes later for the same reason.

Of the 110 people on board, one passenger was found alive but died on the way to a hospital; in the end, no one aboard survived.

[3] Although early speculation indicated that the crash was caused by an explosive device, an investigation by the Republic of China Civil Aeronautics Board concluded that severe corrosion led to a pressure-hull rupture.

The severe corrosion was due to the many pressurization flight cycles the aircraft had experienced, and that cracks produced were probably undetected.