ASN Wikibase Occurrence # 294940
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: | Sunday 7 December 2003 |
| Time: | 16:00 LT |
| Type: |  Cessna 172N |
| Owner/operator: | American School Of Aviation |
| Registration: | N739SU |
| MSN: | 17270776 |
| Year of manufacture: | 1978 |
| Total airframe hrs: | 8192 hours |
| Engine model: | Lycoming O-360 |
| Fatalities: | Fatalities: 0 / Occupants: 2 |
| Aircraft damage: | Substantial |
| Category: | Accident |
| Location: | Snelling, California -
 United States of America
|
| Phase: | Unknown |
| Nature: | Training |
| Departure airport: | Merced-Castle AFB, CA (MER/KMER) |
| Investigating agency: | NTSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
The airplane lost engine power and collided with terrain and nosed over during a forced landing. About 5 minutes in to flight the vacuum instruments failed, then 5 minutes later, at 3,000 feet, the engine made a loud noise and black smoke entered the cockpit. The smoke seemed to originate from the engine. The engine lost power and was not responding to throttle adjustments. The aircrew selected a green field into which to perform a forced landing. During the landing touchdown the nose wheel caught the ground, and the airplane nosed over on to it's back. Examination of the engine revealed that the woodruff key linking the oil pump drive shaft to the oil pump accessory gear had sheared, resulting in oil starvation and a catastrophic failure of the engine.
Probable Cause: The total loss of engine power due to oil starvation caused by the failure of the engine driven oil pump.
Accident investigation:
 |
|
Sources:
NTSB LAX04LA062
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 12-Oct-2022 16:03 | ASN Update Bot | Added |
Corrections or additions? ... Edit this accident description
The Aviation Safety Network is an exclusive service provided by:
Quick Links:
| ASN Home | Send Correction / Feedback |
| FSF Home | Disclaimer | Copyright |
| Contact Us | Privacy Policy |
| Press / Media |
CONNECT WITH US:
©2024 Flight Safety Foundation