National Transportation Safety Board
Aviation Incident Final Report

 

 

Location:

Jackson Hole, WY

Incident Number:

DCA11IA015

Date & Time:

12/29/2010, 1138 MST

Registration:

N668AA

Aircraft:

BOEING 757-223

Aircraft Damage:

None

Defining Event:

Runway excursion

Injuries:

185 None

Flight Conducted Under:

Part 121: Air Carrier - Scheduled

Analysis

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.

Probable Cause and Findings

The National Transportation Safety Board determines the probable cause(s) of this incident to be:
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.

Findings

Aircraft

Drag control system - Malfunction (Cause)

Thrust reverser - Malfunction (Cause)

Personnel issues

Monitoring equip/instruments - Pilot (Cause)

Use of equip/system - Pilot (Cause)

Action - Pilot (Factor)

Factual Information

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.

 

History of Flight

Landing-flare/touchdown

Flight control sys malf/fail

Landing-landing roll

Powerplant sys/comp malf/fail

Runway excursion (Defining event)

 

 

Pilot Information

Certificate:

Airline Transport; Commercial; Flight Engineer

Age:

60, Male

Airplane Rating(s):

Multi-engine Land; Single-engine Land

Seat Occupied:

Left

Other Aircraft Rating(s):

 

Restraint Used:

Seatbelt, Shoulder harness

Instrument Rating(s):

Airplane

Second Pilot Present:

Yes

Instructor Rating(s):

 

Toxicology Performed:

No

Medical Certification:

Class 1

Last FAA Medical Exam:

11/18/2010

Occupational Pilot:

Yes

Last Flight Review or Equivalent:

09/14/2010

Flight Time:

19645 hours (Total, all aircraft), 10779 hours (Total, this make and model)

 

 

Co-Pilot Information

Certificate:

Airline Transport

Age:

48, Male

Airplane Rating(s):

Multi-engine Land; Single-engine Land

Seat Occupied:

Right

Other Aircraft Rating(s):

None

Restraint Used:

Seatbelt, Shoulder harness

Instrument Rating(s):

Airplane

Second Pilot Present:

Yes

Instructor Rating(s):

None

Toxicology Performed:

No

Medical Certification:

Class 1

Last FAA Medical Exam:

04/05/2010

Occupational Pilot:

Yes

Last Flight Review or Equivalent:

09/15/2010

Flight Time:

11800 hours (Total, all aircraft), 3582 hours (Total, this make and model)

 

 

Aircraft and Owner/Operator Information

Aircraft Make:

BOEING

Registration:

N668AA

Model/Series:

757-223

Aircraft Category:

Airplane

Year of Manufacture:

 

Amateur Built:

No

Airworthiness Certificate:

Normal

Serial Number:

25333

Landing Gear Type:

Retractable -

Seats:

178

Date/Type of Last Inspection:

 

Certified Max Gross Wt.:

 

Time Since Last Inspection:

 

Engines:

2 Turbo Fan

Airframe Total Time:

 

Engine Manufacturer:

ROLLS-ROYC

ELT:

 

Engine Model/Series:

RB.211 SERIES

Registered Owner:

AMERICAN AIRLINES INC

Rated Power:

22000 lbs

Operator:

AMERICAN AIRLINES INC

Operating Certificate(s) Held:

Flag carrier (121)

Operator Does Business As:

 

Operator Designator Code:

AALA

 

Meteorological Information and Flight Plan

Conditions at Accident Site:

Instrument Conditions

Condition of Light:

Day

Observation Facility, Elevation:

JAC

Distance from Accident Site:

 

Observation Time:

1143 MST

Direction from Accident Site:

 

Lowest Cloud Condition:

 

Visibility

1 Miles

Lowest Ceiling:

Broken

Visibility (RVR):

 

Wind Speed/Gusts:

10 knots /

Turbulence Type Forecast/Actual:

/

Wind Direction:

240°

Turbulence Severity Forecast/Actual:

/

Altimeter Setting:

29.13 inches Hg

Temperature/Dew Point:

-3°C / -6°C

Precipitation and Obscuration:

Light - Snow

Departure Point:

Chicago, IL (ORD)

Type of Flight Plan Filed:

IFR

Destination:

Jackson Hole, WY (JAC)

Type of Clearance:

IFR

Departure Time:

 

Type of Airspace:

 

 

Airport Information

Airport:

Jackson Hole Airport (JAC)

Runway Surface Type:

Asphalt

Airport Elevation:

6491 ft

Runway Surface Condition:

Snow

Runway Used:

19

IFR Approach:

ILS

Runway Length/Width:

6300 ft / 150 ft

VFR Approach/Landing:

None

 

Wreckage and Impact Information

Crew Injuries:

6 None

Aircraft Damage:

None

Passenger Injuries:

179 None

Aircraft Fire:

None

Ground Injuries:

N/A

Aircraft Explosion:

 

Total Injuries:

185 None

Latitude, Longitude:

 

 


 


Administrative Information

Investigator In Charge (IIC):

Joseph M Sedor

Report Date:

07/02/2012

Additional Participating Persons:

Lori Anglin; The Boeing Company

Robert Hendrickson; FAA

Brad Brugger; Transport Workers Union of America

Ken Lee; Allied Pilots Association

Publish Date:

07/02/2012

Investigation Docket:

http://dms.ntsb.gov/pubdms/search/dockList.cfm?mKey=78072