A FAT Far Eastern Air Transport Avions de Transport Regional ATR-72-212A, registration B-28082 performing flight FE-3060 from Magong to Taichung (Taiwan) with 72 people on board, landed on Taichung's runway 36 at about 21:19L (13:19Z) but veered left off the runway and rolled with all gear over grass temporarily before returning onto the runway. There were no injuries, the aircraft sustained no damage.
The airport reported neither aircraft nor runway lights were damaged when the aircraft went off the runway temporarily.
Taiwan's ASC dispatched investigators on site and opened an investigation into the occurrence.
On Aug 14th 2020 Taiwan's ASC released their final report in Chinese and executive summary in English concluding the probable causes of the occurrence were:
Findings Related to Probable Causes
1. The flight crew did not fully correct the aircraft's left deviation before landing. They did not see the centerline and touched down on the left side of the runway. The appropriate wet runway landing techniques was not applied, and the flight crew did not properly correct the aircraft's left deviation tendency after landing.
Findings Related to Risk
1. The current CRM training and assessment of the Far East Air Transport were not effectively meet the objective of the training, which affected the flight crew's ability to assess relevant risks, threats, situation awareness, communicate and the decisions making during the flight.
2. The runway of Taichung Airport has no center line lights and poor runway drainage function, which affecting the landing operation of the aircraft under poor weather condition.
Other Findings
1. The runway of Taichung Airport may contaminated due to rain, but the existing factual data does not have sufficient evidence to show that the runway condition affected the aircraft landing operation.
2. There is no evidence show that this accident related to the flight crews fatigue.
3. The relevant Far East manuals lack detailed operation instructions related to wet/slippery runways, and the flight crew operation manuals and flight manuals lack related reference content required for aircraft training manuals.
4. The right engine RPM and turbine temperature did drop temporarily during aircraft veered off the runway, which may cause by water inject into the engine intake.
5. There is no evidence to show that the flight crew had affected by any drugs and alcohol during the flight.
6. There is no evidence to show that the occurrence was relate to aircraft maintenance, aircraft system and weight and balance of aircraft.