NONE · BOEING 757-223 · 2010-12-29 · Jackson Hole, WY, USA
Event
NTSB number
DCA11IA015
Event ID
20101229X22154
Type
Incident
Date
2010-12-29
Location
Jackson Hole, WY, USA
Coordinates
43.469985, -110.760002
Injuries
Highest injury
NONE
Fatal
0
Serious
0
Minor
0
Uninjured
189
Total aboard
189
Aircraft
Make
BOEING
Model
757-223
Registration
N668AA
FAR Part
121
Engines
2
Damage
—
Conditions
Light
DAYL
Weather
IMC
Probable cause
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.