ASN Wikibase Occurrence # 356279
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Date: | Friday 31 January 1997 |
Time: | 17:10 LT |
Type: | Boeing 757-232 |
Owner/operator: | Delta Air Lines |
Registration: | N611DL |
MSN: | 22818/71 |
Year of manufacture: | 1985 |
Total airframe hrs: | 37395 hours |
Engine model: | P&W PW2037 |
Fatalities: | Fatalities: 0 / Occupants: 168 |
Aircraft damage: | Minor |
Category: | Serious incident |
Location: | Atlanta, GA -
United States of America
|
Phase: | En route |
Nature: | Unknown |
Departure airport: | (KATL) |
Destination airport: | Dallas, TX (KDFW) |
Investigating agency: | NTSB |
Confidence Rating: | Accident investigation report completed and information captured |
Narrative:After takeoff, the left engine experienced an uncontained failure of the Stage 1 High Pressure Turbine (HPT). The airplane returned safely and made a precautionary landing. After further examination of the engine, it was determined that the 'HPT disk blade retention lug had separated because of a low cycle fatigue fracture'. Both a Service Bulletin, PW2000 A72-592, and an Airworthiness Directive, TAD 97-11-51T, were issued to address this problem in this and other Pratt and Whitney engines.
Probable Cause: failure of the Stage 1 High Pressure Turbine due to a fatigue fracture in a disk blade retention lug.
Accident investigation:
|
| |
Investigating agency: | NTSB |
Report number: | ATL97IA035 |
Status: | Investigation completed |
Duration: | 1 year and 2 months |
Download report: | Final report |
|
Sources:
NTSB ATL97IA035
Revision history:
Date/time | Contributor | Updates |
12-Mar-2024 20:57 |
ASN Update Bot |
Added |
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