ASN Wikibase Occurrence # 146514
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| Date: | Monday 25 June 2012 |
| Time: | 09:40 |
| Type: |  Piper PA-32-300 Cherokee Six B |
| Owner/operator: | Air Excursions Llc |
| Registration: | N8908N |
| MSN: | 32-40695 |
| Year of manufacture: | 1969 |
| Total airframe hrs: | 14940 hours |
| Engine model: | Lycoming TIO-540 SER |
| Fatalities: | Fatalities: 0 / Occupants: 4 |
| Aircraft damage: | Substantial |
| Category: | Accident |
| Location: | Goose Point, Pleasant Island, AK -
 United States of America
|
| Phase: | En route |
| Nature: | Passenger - Scheduled |
| Departure airport: | Juneau, AK (PAJN) |
| Gustavus, AK | |
| Investigating agency: | NTSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
The scheduled passenger flight was about 11 miles from its destination airport when the airplane’s engine began to lose power and vibrate. After completing the “Engine Power Loss In-Flight” emergency checklist, and with no improvement in engine power or the vibration, the pilot elected to shut down the engine and performed a forced landing on a beach. During the landing, the airplane’s nose landing gear folded back under the airplane, and the engine firewall sustained substantial damage.
An examination of the engine revealed that the crankshaft fractured forward of the #6 bearing journal on the crankshaft through the counterweight web. The fracture surfaces were all consistent with fatigue; however, the cause of the fatigue crack initiation could not be determined.
Probable Cause: The fatigue failure of the engine crankshaft for reasons that could not be determined during postaccident metallurgical examination.
Accident investigation:
 |
|
Sources:
NTSB
Location
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 26-Jun-2012 13:11 | Geno | Added |
| 21-Dec-2016 19:28 | ASN Update Bot | Updated [Time, Damage, Category, Investigating agency] |
| 27-Nov-2017 20:43 | ASN Update Bot | Updated [Operator, Total occupants, Other fatalities, Departure airport, Destination airport, Source, Narrative] |
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