B752, Jackson Hole WY USA, 2010

B752, Jackson Hole WY USA, 2010

Summary

On 29 December 2010 an American Airlines Boeing 757-200 overran the landing runway at Jackson Hole WY after a bounced touchdown following which neither the speed brakes nor the thrust reversers functioned as expected. The subsequent investigation found that although the speed brakes had been armed and the  deployed call had been made, this had not occurred and that the thrust reversers had locked on transit after premature selection during the bounce. It was noted that had the spoilers been manually selected, the thrust reverser problem would not have prevented the aircraft stopping on the runway.

Description

On 29 December 2010 a Boeing 757-200 being operated by American AL on a scheduled passenger flight from Chicago O’Hare to Jackson Hole failed to stop before the end of landing runway 19 at destination after a daylight landing in normal ground visibility with light snow falling and finally stopped in deep snow 220 metres beyond it. The aircraft incurred only minor damage and with none of the 185 occupants injured, the aircraft commander decided that the best option was for everyone to remain on the aircraft and await ground assistance. Passengers were eventually disembarked using steps and bussed to the Terminal.

Investigation

An Investigation was carried out by the National Transportation Safety Board (USA) (NTSB). FDR and CVR data was available for the Investigation. It was noted the aircraft commander, who was acting as PM for the flight, had considerable experience of winter operations into Jackson Hole and its relatively short (1920 metre) runway and both pilots were familiar with it and in compliance with American Airlines special category airport requirements for operations into it.

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