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Accident Report Detail

Runway Overrun of American Airlines Flight 2253, Boeing 757-200, N668AA

Executive Summary

This report discusses the December 29, 2010, incident involving American Airlines flight 2253, a Boeing 757-200, N668AA, which ran off the departure end of runway 19 and came to a stop in deep snow after landing at Jackson Hole Airport (JAC), Jackson Hole, Wyoming. The occupants were not injured, and the airplane sustained minor damage.

Probable Cause

The National Transportation Safety Board determines that the probable cause of this incident was a manufacturing defect in a clutch mechanism that prevented the speedbrakes from automatically deploying after touchdown and the captain‘s failure to monitor and extend the speedbrakes manually. Also causal was the failure of the thrust reversers to deploy when initially commanded. Contributing to the incident was the captain‘s failure to confirm speedbrake extension before announcing their deployment and his distraction caused by the thrust reversers‘ failure to initially deploy after landing.

Accident Location: Jackson Hole , WY    
Accident Date: 12/29/2010
Accident ID: DCA11IA015

Date Adopted: 6/18/2012
NTSB Number: AAR-12-01
NTIS Number: PB2012-910401