5 Aug 2016 - A 737-400F, HA-FAX (22437/2162) operated by ASL Hungary overran Runway 28 at Bergamo's Orio al Serio Airport (BGY) after a long landing in a thunderstorm. The aircraft broke through the airport perimeter fence, car park and dual carriageway before coming to a stop 580 meters beyond the end of the runway. The aircraft was extensively damaged but there were no reported injuries.
LIME 050220Z 34011KT 9999 SHRA TS FEW015 SCT030CB BKN050 18/17 Q1011
The Italian ANSV has determined that the aircraft crossed the threshold at 155kt and floated for 14 seconds at a height of 20-30ft before touching down 2000m beyond the threshold of Runway 28 (LDA 2,874m 9,429ft) which was also wet. It went through the airport perimeter fence at 109kt.
The final report was published on 8 Aug 2018 in Italian. It has concluded that the probable causes of the accident were mainly attributable to human factors. In particular the accident was caused by the loss of situational awareness of the aircraft position relative to the runway, which caused a delay in touch down, that occurred so far down the runway that it was no longer possible to stop the aircraft within the remaining runway.
It appears that the Captain was not aware that the A/T had not disengaged when he disengaged the A/P. During the flare the A/T simply applied thrust to keep the approach speed (rather than retarding it) and did not sink onto the runway. The F/O had only 86hrs on type and did not see the error.
*** Updated 20 Nov 2018 ***
|Contributing factors were:
- the captain's decision to not go around (this decision is of decisive importance in the chain of events that characterized the occurrence)
- inadequate adherence to flight parameters within the last phase of landing
- failure to disable autothrust prior to landing
- low light conditions and presence of storm cells with heavy rain at the time of the occurrence (environmental factor), which may have contributed to the loss of situational awareness
- tunnel vision by the crew in the final phase of the flight in which both flight crew were intent on acquiring external visual references remaining unaware that the aircraft had flown over the runway for 18 seconds at high speed
- poor assertiveness by the first officer in querying decisions by the captain
Finally, it can not be ruled out the the accident may also need to be attributed to fatigue, although not perceived by the crew, the fatigue may have influenced cognitive processes in particular with the commander interfering with proper decision making.
Photo: @GuzmanGarmendia Twitter
The ANSV reported the crew had already performed two night flights that night. On approach to Bergamo the crew requested the ILS approach to runway 28, established on the ILS and was cleared to land on runway 28, tower reported the runway was wet and reported the latest weather.