ASN Wikibase Occurrence # 379015
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Date: | Monday 9 July 1984 |
Time: | 14:15 LT |
Type: | Boeing 737-222 |
Owner/operator: | United Airlines |
Registration: | N9015U |
MSN: | 19053/34 |
Engine model: | P&W JT8D-17 |
Fatalities: | Fatalities: 0 / Occupants: 71 |
Aircraft damage: | None |
Category: | Serious incident |
Location: | Portland, OR -
United States of America
|
Phase: | En route |
Nature: | Passenger - Scheduled |
Departure airport: | Portland, OR (KPDX) |
Destination airport: | San Diego, CA (KSAN) |
Investigating agency: | NTSB |
Confidence Rating: | Accident investigation report completed and information captured |
Narrative:AFTER TAKEOFF, THE ACFT WAS CLIMBING THRU ABOUT 4000 FT WHEN THE APU FIRE WARNING LIGHT ILLUMINATED. THE FLT CREW DISCHARGED THE FIRE EXTINGUISHING UNITS & REQUESTED AN EMERGENCY LANDING. A TEARDOWN OF THE APU REVEALED EVIDENCE THAT A HARD OBJECT WAS INJESTED INTO THE 1ST STAGE COMPRESSOR IMPELLER, BENDING 2 OF THE BLADES. THE OBJECT CONTINUED THRU THE ENG & IMPACTED THE EXDUCER BLADE. THE BLADE FAILED AT A CRACK & PENETRATED THE EXHAUST PIPE ASSEMBLY. HOT GASES THEN VENTED INTO THE COOLING AIR PASSAGE & OVERHEATED THE TAIL CONE & AFT PORTION OF THE APU.
Probable Cause:
Accident investigation:
|
| |
Investigating agency: | NTSB |
Report number: | SEA84IA168 |
Status: | Investigation completed |
Duration: | |
Download report: | Final report |
|
Sources:
NTSB SEA84IA168
Location
Revision history:
Date/time | Contributor | Updates |
31-Mar-2024 14:50 |
ASN Update Bot |
Added |
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