ASN Wikibase Occurrence # 278258
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| Date: | Saturday 14 May 2022 |
| Time: | 14:30 |
| Type: |  Piper PA-12 Super Cruiser |
| Owner/operator: | Private |
| Registration: | N3960M |
| MSN: | 12-2843 |
| Year of manufacture: | 1947 |
| Fatalities: | Fatalities: 0 / Occupants: 1 |
| Aircraft damage: | Substantial |
| Category: | Accident |
| Location: | Enterprise, OR -
 United States of America
|
| Phase: | Take off |
| Nature: | Private |
| Departure airport: | Enterprise Municipal Airport, OR (8S4) |
| Investigating agency: | NTSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
On May 14, 2022, about 1430 Pacific daylight time, a Piper PA-12 airplane, N3960M, was substantially damaged when it was involved in an accident near Enterprise, Oregon. The pilot was not injured. The airplane was operated as a Title 14 Code of Federal Regulations Part 91 personal flight.
The pilot reported that shortly after departure, about 700 ft above ground level (agl), the windshield was sprayed with oil. He turned and entered the downwind leg of the traffic pattern and attempted to land on the runway. He reported that he was too high during the approach and aborted the landing. On the second attempt to land on runway 30, the oil spray was getting worse, and the pilot made a precautionary landing resulting in substantial damage to the fuselage.
The postaccident examination of the airplane and interview with the mechanic revealed that the expansion plug was improperly installed and had separated from the end of the crankshaft, causing oil to exit through the propeller spinner resulting in the oil spray on the windshield.
Probable Cause: The inadequate maintenance and inspection of the crankshaft expansion plug, which resulted in the separation of the expansion plug from the crankshaft and the subsequent loss of oil and windshield obstruction during departure.
Accident investigation:
 |
|
Sources:
NTSB
https://data.ntsb.gov/Docket?ProjectID=105088
History of this aircraft
Other occurrences involving this aircraft
| 27 May 1994 | N3960M | Private | 0 | Nashua, MT | |
sub |
Location
Images:
Photo: NTSB
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 19-May-2022 08:25 | Captain Adam | Added |
| 02-Jun-2022 21:59 | Captain Adam | Updated [Time, Narrative, Category] |
| 13-Apr-2024 20:15 | Captain Adam | Updated [Location, Source, Narrative, Accident report, Photo] |
Corrections or additions? ... Edit this accident description
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