ASN Wikibase Occurrence # 355872
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| Date: | Thursday 15 May 1997 |
| Time: | 10:25 LT |
| Type: |  Lockheed L-1011 TriStar 1 |
| Owner/operator: | Trans Word Airlines (TWA) |
| Registration: | N11003 |
| MSN: | 193B-1015 |
| Total airframe hrs: | 554 hours |
| Engine model: | Rolls-Royce RB211-22B |
| Fatalities: | Fatalities: 0 / Occupants: 187 |
| Aircraft damage: | Minor |
| Category: | Serious incident |
| Location: | Saint Louis, MO -
 United States of America
|
| Phase: | En route |
| Nature: | Unknown |
| Departure airport: | Orlando, FL (KMCO) |
| (KSTL) | |
| Investigating agency: | NTSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
About 28 minutes after takeoff, while climbing through FL290, the flight crew heard a loud bang of short duration. A check of the airplane was performed with no abnormalities discovered, except for a slight vibration near the left wing area. Postflight examination of the airplane revealed the left main landing gear strut door had separated from the airplane. Also under-wing damage was noted in that area. There was evidence that initial failure of the door mounting points occurred when the crew heard the loud noise, but final separation of the door occurred during final approach for landing. The door landed in downtown Saint Louis. During examination of the door's lower forward mounting bracket, rounded threads were found on the mounting eyebolt, and associated hardware was missing. The missing hardware consisted of a spacer, washer, castellated nut and cotter pin. All other mounting points had signs of overload fractures. Maintenance was last performed in this area on 5/7/97.
Probable Cause: failure of company maintenance personnel to properly install a mounting eyebolt (and associated cotter pin, washer, spacer and castellated nut) on the lower forward bracket of the left main landing gear strut door.
Accident investigation:
 |
|
Sources:
NTSB CHI97IA134
Location
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 12-Mar-2024 16:37 | ASN Update Bot | Added |
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