ASN Wikibase Occurrence # 37244
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| Date: | Thursday 9 February 1989 |
| Time: | 09:05 |
| Type: |  Cessna U206G |
| Owner/operator: | Arctic Circle Air Service Inc |
| Registration: | N756EA |
| MSN: | U206044021 |
| Total airframe hrs: | 3830 hours |
| Engine model: | CONTINENTAL IO-520-F |
| Fatalities: | Fatalities: 1 / Occupants: 1 |
| Aircraft damage: | Destroyed |
| Category: | Accident |
| Location: | Fairbanks, AK -
 United States of America
|
| Phase: | Landing |
| Nature: | Unknown |
| Departure airport: | Fairbanks, AK (FAI) |
| Fort Yukon, AK (FYU) | |
| Investigating agency: | NTSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
DURING FLIGHT, THE PILOT REPORTED AN ENGINE FAILURE. SUBSEQUENTLY, THE AIRPLANE CRASHED AS IT WAS LANDED IN A STAND OF PINE TREES. AN EXAM OF THE ENGINE REVEALED THAT ONE OF THE REAR TORSION VIBRATION DAMPERS HAD SEPARATED FROM THE CRANKSHAFT BOSS. THERE WAS EVIDENCE THAT THIS RESULTED IN MASSIVE INTERNAL ENGINE DAMAGE & A SUBSEQUENT LOSS OF POWER. CAUSE: SEPARATION OF THE TORSIONAL VIBRATION DAMPERS FROM THE CRANKSHAFT BOSS.
Sources:
NTSB: https://www.ntsb.gov/ntsb/brief.asp?ev_id=20001213X27676
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] |
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