ASN Wikibase Occurrence # 365935
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| Date: | Tuesday 20 November 1990 |
| Time: | 19:13 LT |
| Type: |  Piper PA-28-140 |
| Owner/operator: | Private |
| Registration: | N8774N |
| MSN: | 28-25598 |
| Year of manufacture: | 1969 |
| Total airframe hrs: | 4990 hours |
| Engine model: | LYCOMING O-320-E2A |
| Fatalities: | Fatalities: 0 / Occupants: 2 |
| Aircraft damage: | Substantial |
| Category: | Accident |
| Location: | Winston-salem, NC -
 United States of America
|
| Phase: | En route |
| Nature: | Private |
| Departure airport: | |
| Myrtle Beach, SC (CRE | |
| Investigating agency: | NTSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
SEVERAL MINUTES AFTER TAKEOFF, THE PILOT NOTICED A ZERO OIL PRESSURE INDICATION. AFTER TURNING BACK TO THE AIRPORT, THE ENGINE RPM BEGAN TO DECAY, THEN THE ENGINE QUIT. THE PILOT DITCHED THE AIRPLANE IN A LAKE ABOUT THREE MILES FROM THE AIRPORT. TEARDOWN ANALYSIS OF THE ENGINE REVEALED A FAILED #1 CYLINDER PISTON PIN PLUG. THE INTAKE LOBES ON THE CAMSHAFT WERE SEVERLY WORN, AND THE INTAKE TAPPET BODIES WERE SEVERELY SPALLED. THREE CONNECTING RODS WERE ALSO FOUND TO HAVE FAILED. THE OIL PRESSURE SCREEN WAS CONTAMINATED WITH FERROUS AND NON-FERROUS PARTICLES. THE PILOT REPORTED A LOSS OF OIL PRESSURE ON ANOTHER FLIGHT A FEW DAYS PRIOR TO THE ACCIDENT.
Probable Cause: FAILURE OF A PISTON PIN PLUG WHICH RESULTED IN A TOTAL LOSS OF POWER. FACTORS IN THE ACCIDENT WERE AN INADEQUATE ENGINE OVERHAUL WHICH LED TO PREMATURE ENGINE WEAR, AND THE PILOT'S FAILURE TO OBTAIN PROPER MAINTENANCE FOLLOWING A LOSS OF ENGINE OIL PRESSURE.
Accident investigation:
 |
|
Sources:
NTSB ATL91LA019
Location
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 20-Mar-2024 15:35 | ASN Update Bot | Added |
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