ASN Wikibase Occurrence # 182066
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| Date: | Sunday 6 July 1997 |
| Time: | 16:50 LT |
| Type: |  Boeing 727-247 |
| Owner/operator: | Delta Air Lines, Inc. |
| Registration: | N2809W |
| MSN: | 20581/890 |
| Year of manufacture: | 1972 |
| Total airframe hrs: | 9198 hours |
| Engine model: | P&W JT8D-15A |
| Fatalities: | Fatalities: 0 / Occupants: 156 |
| Aircraft damage: | Substantial |
| Category: | Accident |
| Location: | Albuquerque International Airport, NM (ABQ/KABQ) -
 United States of America
|
| Phase: | Landing |
| Nature: | Unknown |
| Departure airport: | Dfw Airport, TX (DFW |
| (KABQ) | |
| Investigating agency: | NTSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
The Captain reported a normal flight and that the landing approach was stabilized. He stated that the wind was 'right down the runway for the landing.' As the airplane decelerated through 70 KIAS, the first officer reported hearing a 'loud bang,' and the airplane began 'listing heavily to the right and drifting to the right.' The pilots determined that the right main landing gear (MLG) had collapsed and an evacuation was ordered. The right MLG was last removed (18,188 cycles before the accident) for overhaul on April 8, 1988, and the right MLG forward trunnion bearing support fitting (FTBSF) was last ultrasonically inspected in May 1993 (7,634 cycles before the accident). A Service Bulletin, dated March 8, 1990, recommended that the MLG FTBSFs be ultrasonically inspected after 12,000 flight cycles every 6 months or 1,500 flight cycles, whichever occurred first. Operators were to continue this inspection cycle until the part was replaced or the preventative modification was done. The NTSB Materials Laboratory examined the broken right MLG FTBSF and determined that the failure was the result of stress corrosion cracking.
Probable Cause: The inadequate inspection of the right main landing gear forward trunnion bearing support fitting. Factors were the failure of the right main landing gear forward trunnion bearing support fitting and the subsequent right main landing gear failure.
Accident investigation:
 |
|
Sources:
NTSB FTW97FA255
Location
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 07-Dec-2015 16:08 | JINX | Added |
| 26-Nov-2016 21:34 | TB | Updated [Location, Narrative] |
| 21-Dec-2016 19:30 | ASN Update Bot | Updated [Time, Damage, Category, Investigating agency] |
| 08-Apr-2024 14:19 | ASN Update Bot | Updated [Time, Operator, Total occupants, Other fatalities, Nature, Departure airport, Destination airport, Source, Narrative, Category, Accident report] |
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