ASN Wikibase Occurrence # 371772
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| Date: | Thursday 3 December 1987 |
| Time: | 13:34 LT |
| Type: |  Boeing 727-243 |
| Owner/operator: | People Express Airlines |
| Registration: | N571PE |
| MSN: | 21264/1225 |
| Year of manufacture: | 1976 |
| Total airframe hrs: | 24892 hours |
| Engine model: | P&W JT8D-9A |
| Fatalities: | Fatalities: 0 / Occupants: 87 |
| Aircraft damage: | Minor |
| Category: | Serious incident |
| Location: | Houston, TX -
 United States of America
|
| Phase: | Approach |
| Nature: | Passenger - Scheduled |
| Departure airport: | El Paso, TX (KELP) |
| Houston-George Bush Intercontinental Airport, TX (IAH/KIAH) | |
| Investigating agency: | NTSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
DURING THE APPROACH TO LANDING THE NUMBER SIX LEADING EDGE SLAT ASSEMBLY FAILED. THE INBOARD SECTION OF THE SLAT HUNG DOWN AND BENT AFT. THE PILOT LANDED THE ACFT WITHOUT FURTHER INCIDENT. METALLURGICAL ANALYSIS OF COMPONENTS REVEALED THAT A SLAT TRACK ROLLER BEARING CONTAINED EVIDENCE OF CORROSION AND SPALLING. ADDITIONALLY, THE SLAT TRACK BEARING BOLT THAT HAD BEEN INSTALLED THROUGH THE ABOVE MENTIONED BEARING HAD HEAVY CIRCUMFERENTIAL GOUGES CONTAINED IN THE SURFACE OF A CROSS-DRILLED HOLE AT THE AREAS OF FATIGUE INITIATION. THERE WAS ALSO EVIDENCE OF TEARING, TYPICAL OF DAMAGE PRODUCED DURING DRILLING WITH A DULL DRILL BIT. THE AIRPLANE HAD COMPLETED A MAJOR STRUCTURAL MAINTENANCE CHECK 48 FLIGHT HOURS AND 28 CYCLES PRIOR TO THE INCIDENT.
Probable Cause: IMPROPER DRILLING OF THE CROSS HOLE IN THE SLAT TRACK BEARING BOLT, WHICH LED TO ITS FAILURE FROM FATIGUE CRACKING.
Accident investigation:
 |
|
Sources:
NTSB FTW88IA037
History of this aircraft
Other occurrences involving this aircraft
| 14 October 1986 | N517PE | People Express Airlines | 0 | Portland, ME | |
min |
| 7 June 1997 | N571PE | Continental Air Lines | 0 | Newark International Airport, NJ (EWR) | |
w/o |
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 26-Mar-2024 09:46 | ASN Update Bot | Added |
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