ASN Wikibase Occurrence # 376046
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Date: | Saturday 19 October 1985 |
Time: | 12:35 LT |
Type: | McDonnell Douglas DC-9-51 |
Owner/operator: | Eastern Air Lines |
Registration: | N412EA |
MSN: | 47733 |
Engine model: | P&W JT8D-17 |
Fatalities: | Fatalities: 0 / Occupants: 122 |
Aircraft damage: | Minor |
Category: | Serious incident |
Location: | Tampa, FL -
United States of America
|
Phase: | Initial climb |
Nature: | Passenger - Scheduled |
Departure airport: | (KTPA) |
Destination airport: | Atlanta Hartsfield-Jackson International Airport, GA (ATL/KATL) |
Investigating agency: | NTSB |
Confidence Rating: | Accident investigation report completed and information captured |
Narrative:SHORTLY AFTER LIFT-OFF, THE FLT CREW HEARD A LOUD NOISE (SIMILAR, BUT LOUDER THAN A TIRE BLOW-OUT) AS THE #1 ENG FAILED.THEY SECURED THE #1 ENG, REMAINED IN THE TRAFFIC PATTERN & LANDED ON THE SAME RWY. AFTER LANDING, AN EXAM REVEALED THE COMBUSTION CHAMBER OUTER CASE, PN 616315, HAD FAILED FROM LOW CYCLE FATIGUE. THE FATIGUE HAD PROPAGATED FROM A BOLT HOLEON THE REAR FLANGE & PROGRESSED FORWARD UNTIL IT REACHED A CRITICAL LENGTH, THEN THE REMAINING FRACTURE WAS FROM TENSILE OVERLOAD. NICKEL-CADMIUM PLATING WAS FOUND IN THE FATIGUE CRACKED AREA. THE CASE WAS LAST REPLATED AFTER IT WAS MODIFIED, APRX 5152 FLT HRS PRIOR TO THE ACDNT. PRATT & WHITNEY ENGINE REPAIR MANUAL 72-42-11 PROHIBITS THE NICKEL-CADMIUM PLATING OF THE FRONT & REAR CASE FLANGE BOLT HOLES.
Probable Cause:
Accident investigation:
|
| |
Investigating agency: | NTSB |
Report number: | MIA86MA013 |
Status: | Investigation completed |
Duration: | |
Download report: | Final report |
|
Sources:
NTSB MIA86MA013
Location
Revision history:
Date/time | Contributor | Updates |
29-Mar-2024 12:10 |
ASN Update Bot |
Added |
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