ASN Wikibase Occurrence # 382308
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| Date: | Thursday 31 March 1983 |
| Time: | 16:30 LT |
| Type: |  Cassutt III M SPORT |
| Owner/operator: | Private |
| Registration: | N1790 |
| MSN: | 1002 |
| Total airframe hrs: | 540 hours |
| Engine model: | Lycoming IO-320 |
| Fatalities: | Fatalities: 0 / Occupants: 1 |
| Aircraft damage: | Substantial |
| Category: | Accident |
| Location: | Hiawatha, KS -
 United States of America
|
| Phase: | En route |
| Nature: | Private |
| Departure airport: | Manhattan, KS (MHK |
| Madison, WI (KMSN) | |
| Investigating agency: | NTSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
WHILE EN ROUTE AT 5500 FT MSL, THE PLT NOTICED AN OIL FILM START TO COVER THE WINDSHIELD OF THE HOME BUILT ACFT. AT THAT TIME, HE WAS APPROACHING HIAWATH, KS, SO HE DIVERTED TO THE HIAWATHA ARPT. BY THE TIME HE ENTERED THE TRAFFIC PATTERN TO LAND, THE OIL RESTRICTED HIS FORWARD VISIBILITY. ON FINAL APPROACH, THE PLT S-TURNED TO KEEP HIMSELF ORIENTED WITH THE RWY. AFTER TOUCHDOWN, THE ACFT VEERED OFF THE RWY & THE GEAR COLLAPSED. AN INVESTIGATION REVEALED THE CRANKSHAFT PLUG, LYCOMING PN STD-1211, WAS LOOSE & DISTORTED, THUS ALLOWING OIL TO EXIT THE ENG AT THE PROPELLER. THE PLT STATED THAT AN OIL LEAK HAD PREVIOUSLLY DEVELOPED. HE SAID A MECHANIC USED A HAMMER TO RESEAT THE PLUG. AN EXAM OF THE PLUG REVEALED AN OFF-CENTERED INDENTATION ON THE PLUG'S FACE & DRIED SILICONE ADHESIVE AROUND ITS OUTER CIRCUMFERENCE.
Probable Cause:
Accident investigation:
 |
|
Sources:
NTSB MKC83FA084
Location
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 02-Apr-2024 12:35 | ASN Update Bot | Added |
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