ASN Wikibase Occurrence # 294507
This information is added by users of ASN. Neither ASN nor the Flight Safety Foundation are responsible for the completeness or correctness of this information.
If you feel this information is incomplete or incorrect, you can
submit corrected information.
Date: | Monday 13 September 2004 |
Time: | 12:45 LT |
Type: | Cessna P206A |
Owner/operator: | Private |
Registration: | N4661F |
MSN: | P206-0261 |
Year of manufacture: | 1966 |
Total airframe hrs: | 4248 hours |
Engine model: | Continental IO-520-A |
Fatalities: | Fatalities: 0 / Occupants: 4 |
Aircraft damage: | Substantial |
Category: | Accident |
Location: | Clearwater, Idaho -
United States of America
|
Phase: | Unknown |
Nature: | Private |
Departure airport: | Weiser, ID (S87) |
Destination airport: | Moose Creek, ID (1U1) |
Investigating agency: | NTSB |
Confidence Rating: | Accident investigation report completed and information captured |
Narrative:
While en route, the aircraft's engine began to run rough, vibrate, and make a lot of unusual noises. Soon thereafter the oil pressure dropped to 0 psi, and the engine seized. The pilot then attempted an emergency power-off landing in an open field, but the nose gear collapsed, and the nose gear strut dug into the dirt resulting in the aircraft nosing over onto its back. A teardown inspection of the engine revealed that the number three piston pin had failed, and as a result a significant portion of the internal components of the engine had been destroyed. An examination of the Superior Air Parts piston pin revealed that it had failed along a fatigue crack that propagated across the longitudinal axis of the pin. The portion of the pin that contained the origin of the crack was not recovered, and therefore a determination of the initiating factor could not be made.
,
Probable Cause: A loss of engine power due to fatigue crack propagation of the number three piston pin while in cruise flight, leading to a power off forced landing in an open field. Factors include soft uphill terrain.
Accident investigation:
|
| |
Investigating agency: | NTSB |
Report number: | SEA04LA189 |
Status: | Investigation completed |
Duration: | 9 months |
Download report: | Final report |
|
Sources:
NTSB SEA04LA189
Revision history:
Date/time | Contributor | Updates |
11-Oct-2022 18:59 |
ASN Update Bot |
Added |
The Aviation Safety Network is an exclusive service provided by:
CONNECT WITH US:
©2024 Flight Safety Foundation