ASN Wikibase Occurrence # 377351
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| Date: | Monday 22 April 1985 |
| Time: | 16:58 LT |
| Type: |  Piper PA-31-350 |
| Owner/operator: | Bashor/palmer & Assoc. Inc. |
| Registration: | N3550N |
| MSN: | 31-8052038 |
| Year of manufacture: | 1980 |
| Total airframe hrs: | 1600 hours |
| Engine model: | LYCOMING TIO-540-J2BD |
| Fatalities: | Fatalities: 0 / Occupants: 1 |
| Aircraft damage: | Substantial |
| Category: | Accident |
| Location: | Sallisaw, OK -
 United States of America
|
| Phase: | En route |
| Nature: | Ferry/positioning |
| Departure airport: | Tulsa, OK (KTUL) |
| Mobile, AL (KMOB) | |
| Investigating agency: | NTSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
AN ANNUAL INSPN HAD JUST BEEN COMPLETED (4/22/85) & EACH ENG HAD ABOUT 1 HR OF FLT TIME. THE PLT STATED THAT HE TOOK OFF & CLIMBED TO CRUISE AT 9000 FT, THEN CLOSED THE COWL FLAPS & SET THE FUEL SETTINGS FOR 75% POWER. WHILE EN ROUTE, HE NOTED OIL TRAILING FROM THE L ENG OIL ACCESS DOOR, BUT THE L OIL PRESSURE WAS IN THE NORMAL RANGE. HE THROTTLED BACK THE LEFT ENG & REQUESTED VECTORS TO THE NEAREST ARPT. THE PLT RPRTD THAT WHILE DIVERTING, HE SAW FIRE COMING FROM THE AFT END OF THE R ENG COMPARTMENT. THE PLT SHUT DOWN THE R ENG, DECLARED AN EMERG & SUBSEQUENTLY MADE AN EMERG/GEAR UP LANDING IN A WET FIELD. DRG AN APCH OVER TREES TO LAND, HE HAD TO MANEUVER TO AVOID POWER LINES. TEARDOWNS OF BOTH ENGS REVEALED MELTING ON THE EDGE & TOP OF SVRL PISTONS. ONE ENG HAD MELTING IN THE HEAD OF 1 CYLINDER & ITS EXHAUST VLV SEATWAS DAMAGED. NO MAINTENANCE OR PRE-ACDNT DISCREPANCIES WERE FND THAT WOULD HAVE RESULTED IN PRE-IGNITION OR DETONATION. THERE WAS EVIDENCE THE RPRTD FIRE WAS ACTUALLY OIL BEING USED & IGNITED BY THE TURBO-CHARGERS.
Probable Cause:
Accident investigation:
 |
|
Sources:
NTSB FTW85LA194
Location
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 30-Mar-2024 10:48 | ASN Update Bot | Added |
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