ASN Wikibase Occurrence # 346318
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| Date: | Wednesday 26 October 2022 |
| Time: | 16:56 |
| Type: |  Piper PA-22-160 Tri-Pacer |
| Owner/operator: | Private |
| Registration: | N8119D |
| MSN: | 22-5610 |
| Year of manufacture: | 1957 |
| Engine model: | Lycoming O-360-A4A |
| Fatalities: | Fatalities: 0 / Occupants: 2 |
| Aircraft damage: | Substantial |
| Category: | Accident |
| Location: | Kenai, AK -
 United States of America
|
| Phase: | Initial climb |
| Nature: | Training |
| Departure airport: | Kenai Airport, AK (ENA/PAEN) |
| Kenai Airport, AK (ENA/PAEN) | |
| Investigating agency: | NTSB |
On October 26, 2022, about 1656 Alaska daylight time, a Piper PA-22-160, N8119D, sustained substantial damage when it was involved in an accident in Kenai, Alaska. The flight instructor and the pilot receiving instruction, who was a private pilot, sustained no injuries. The airplane was operated by the instructor pilot as a Title 14 Code of Federal Regulations Part 91 general aviation flight.
Shortly after takeoff, the engine lost power and the propellor began to windmill. The flight instructor conducted emergency procedures but was unable to regain engine power. The flight instructor determined that they did not have sufficient altitude to make it back to the airport and he selected a road on which to make a forced landing. To avoid a car, the pilot turned slightly towards the edge of the road and was pulled into a snow berm, where the aircraft came to a full stop. The airplane sustained substantial damage to the right wing and fuselage.
A postaccident examination of the engine found the crankshaft drive gear bolt was missing and the gear alignment dowel pin on the crankshaft was broken. The missing bolt was not found during the postaccident examination. The engine was last disassembled in 1983 and the accessory gearbox was opened for an oil pump rebuild in 2006; the investigation was not able to identify how long the engine had operated with the bolt missing. The crankshaft drive gear drives the accessory gear box and, according to the engine manufacturer, failure of the gear or the gear attaching parts would result in complete engine stoppage.
Probable Cause: Improper installation of the crankshaft drive gear by maintenance personnel, who failed to install all required hardware, resulting in an in-flight engine failure.
Accident investigation:
 |
|
Sources:
NTSB
https://data.ntsb.gov/Docket?ProjectID=106291
https://cdn.jetphotos.com/full/5/29448_1614188260.jpg (photo)
Location
Images:
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 06-Oct-2023 17:15 | Captain Adam | Added |
| 06-Oct-2023 17:34 | nhofmann54 | Updated |
Corrections or additions? ... Edit this accident description
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