Jackson Hole Airport
Aircraft Accident/Incident Report

Jackson Hole, Wyoming
Wednesday, December 29, 2010 11:38 MST

NTSB Narrative Summary Released at Completion of Accident

The National Transportation Safety Board’s full report is available at http://www.ntsb.gov. The Aircraft Accident Report number is NTSB/AAR-12/01. On December 29, 2010, about 1138 mountain standard time, American Airlines flight 2253, a Boeing 757-200, N668AA, ran off the departure end of runway 19 after landing at Jackson Hole Airport (JAC), Jackson Hole, Wyoming. The airplane came to rest about 730 feet past the departure end of the runway in deep snow. The 179 passengers, 2 pilots, and 4 flight attendants on board were not injured, and the airplane sustained minor damage. The airplane was registered to and operated by American Airlines as a scheduled domestic flight under the provisions of 14 Code of Federal Regulations (CFR) Part 121. Instrument meteorological conditions in light snow prevailed at JAC at the time of the landing, and the flight operated on an instrument flight rules flight plan. The flight originated from Chicago O’Hare International Airport (ORD), Chicago, Illinois, about 0941 central standard time.

NTSB Probable Cause Narrative

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.

Event Information

Type of Event Incident
Event Date 12/29/2010
Event Day of the Week Wednesday
Time of Event 1138
Event Time Zone Mountain Standard Time
Event City Jackson Hole
Event State WYOMING
Event Country --
Zipcode of the event site --
Event Date Year 2010
Event Date Month 12
MidAir Collision Indicator No
On Ground Collision occurred ? No
Event Location Latitude --
Event Location Longitude --
Event Location Airport Jackson Hole Airport
Event Location Nearest Airport ID JAC
Indicates whether the acc/inc occurred off or on an airport On Airport
Distance from airport in statute miles --
Degrees magnetic from airport --
Airport Elevation 6491
Weather Briefing Completeness --
Investigator's weather source Weather Observation Facility
Time of the weather observation 1143 Mountain Standard Time
Direction of event from weather observation facility (degrees) --
Weather Observation Facility ID JAC
Elevation of weather observation facility --
Distance of event from weather observation facility (units?) --
Time Zone of the weather observation MST
Lighting Conditions Day
Lowest Ceiling Height --
Lowest Non-Ceiling Height --
Sky/Lowest/Cloud Conditions --
Sky Condition for Lowest Ceiling Broken
Visibility Runway Visual Range (Feet) --
Visibility Runway Visual Value (Statute Miles) --
Visibility (Statute Miles) 1
Air Temperature at event time (in degrees celsius) -3
Dew Point at event time (in degress fahrenheit) -6
Wind Direction (degrees magnetic) 240
Variable Wind Indicator Wind direction could be determined
Wind Speed (knots) 10
Wind Velocity Indicator --
Wind Gust Indicator Not Gusting
Wind Gust (knots) --
Altimeter Setting at event time (in. Hg) 29.13
Density Altitude (feet) --
Intensity of Precipitation --
METAR weather report --
Event Highest Injury None
On Ground, Fatal Injuries --
On Ground, Minor Injuries --
On Ground, Serious Injuries --
Injury Total Fatal --
Injury Total Minor --
Injury Total None 185
Injury Total Serious --
Injury Total All --
Investigating Agency NTSB
NTSB Docket Number (internal use) --
NTSB Notification Source JAC Airport Authority
NTSB Notification Date --
NTSB Notification Time --
Fiche Number and/or location -used to find docket information --
Date of most recent change to record Jul 2 2012 2:39PM
User who most recently changed record schd
Basic weather conditions Instrument Meteorological Cond
FAA District Office --

Aircraft Involved

Aircraft #1

Aircraft Registration Number N668AA
NTSB Number DCA11IA015
Missing Aircraft Indicator --
Federal Aviation Reg. Part Part 121: Air Carrier
Type of Flight Plan filed IFR
Flight plan Was Activated? Yes
Damage None
Aircraft Fire None
Aircraft Explosion --
Aircraft Manufacturer's Full Name BOEING
Aircraft Model 757-223
Aircraft Series Identifier --
Aircraft Serial Number 25333
Certified Max Gross Weight --
Aircraft Category Airplane
Aircraft Registration Class --
Aircraft is a homebuilt? No
Flight Crew Seats --
Cabin Crew Seats --
Passenger Seats --
Total number of seats on the aircraft 178
Number of Engines 2
Fixed gear or retractable gear Retractable
Aircraft, Type of Last Inspection --
Date of Last Inspection --
Airframe hours since last inspection --
Airframe Hours --
ELT Installed Unknown
ELT Activated Unknown
ELT Aided Location of Event Site Unknown
ELT Type --
Aircraft Owner Street Address PO BOX 619616 MD 5661
Aircraft Owner City DFW AIRPORT
Aircraft Owner State TX
Aircraft Owner Country USA
Aircraft Owner Zipcode 75261
Operator is an individual? No
Operator Same as Owner? Yes
Operator Is Doing Business As --
Operator Address Same as Owner? No
Operator Street Address --
Operator City --
Operator State --
Operator Country USA
Operator Zip code --
Operator Code AALA
Owner has at least one certificate Yes - certificate holder
Other Operator of large aircraft? No
Certified for Part 133 or 137 Operation --
Operator Certificate Number AALA025A
Indicates whether an air carrier operation was scheduled or not Scheduled
Indicates Domestic or International Flight Domestic
Operator carrying Pax/Cargo/Mail Passenger Only
Type of Flying (Per_Bus / Primary) --
Second Pilot on Board Yes
Departure Point Same as Event No
Departure Airport Code ORD
Departure City Chicago
Departure State IL
Departure Country USA
Departure Time --
Departure Time Zone --
Destination Same as Local Flt --
Destination Airport Code JAC
Destination City Jackson Hole
Destination State WY
Destination Country USA
Specific Phase of Flight --
Report sent to ICAO? --
Evacuation occurred --
Date of most recent change to record Jun 6 2012 4:28PM
User who most recently changed record sedj
Since inspection or accident --
Event Location Runway Number and Location 19
Runway Length 6300
Runway Width 150
Sight Seeing flight No
Air Medical Flight No
Medical Flight --