ASN Wikibase Occurrence # 37836
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| Date: | Wednesday 19 June 1996 |
| Time: | 12:40 LT |
| Type: |  Hughes 269C |
| Owner/operator: | Olympic Air, Inc. |
| Registration: | N7400F |
| MSN: | 250397 |
| Year of manufacture: | 1975 |
| Total airframe hrs: | 2440 hours |
| Engine model: | Lycoming HIO-360-D1A |
| Fatalities: | Fatalities: 1 / Occupants: 2 |
| Aircraft damage: | Destroyed |
| Category: | Accident |
| Location: | Eldon, WA -
 United States of America
|
| Phase: | En route |
| Nature: | Private |
| Departure airport: | Shelton, WA (KSHN) |
| Port Angeles, WA | |
| Investigating agency: | NTSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
While in cruise flight over Hood Canal, the rotorcraft began shaking, and a ground witness heard a 'pop' and observed white smoke. The pilot-in-command executed an intentional ditching, but was unable to swim to shore. The passenger survived. Postcrash examination revealed that the Lycoming HIO-360-D1A engine's number two connecting rod assembly had failed when the cap end had separated. Metallurgical examination revealed that the connecting rod cap had failed from fatigue and that both connecting rod bolts had failed in overload. The fatigue was associated with fretting within the rod cap inner face between the face and the bearing surface.
Probable Cause: fatigue failure of the connecting rod cap, which resulted in loss of engine power and ditching at sea.
Accident investigation:
 |
|
Sources:
NTSB SEA96FA130
History of this aircraft
Other occurrences involving this aircraft
| 1 October 1992 | N7400F | Private | 0 | Hillsboro, OR | |
sub |
Location
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 24-Oct-2008 10:30 | ASN archive | Added |
| 21-Dec-2016 19:23 | ASN Update Bot | Updated [Time, Damage, Category, Investigating agency] |
| 09-Apr-2024 06:13 | ASN Update Bot | Updated [Time, Operator, Other fatalities, Phase, Departure airport, Destination airport, Source, Narrative, Category, Accident report] |
Corrections or additions? ... Edit this accident description
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