ASN Wikibase Occurrence # 360473
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 16 May 1994 |
| Time: | 11:24 LT |
| Type: |  Cessna 172N |
| Owner/operator: | Av Aviation |
| Registration: | N738VE |
| MSN: | 17270265 |
| Total airframe hrs: | 2643 hours |
| Engine model: | LYCOMING O-320-H2AD |
| Fatalities: | Fatalities: 0 / Occupants: 1 |
| Aircraft damage: | Substantial |
| Category: | Accident |
| Location: | Arvin, CA -
 United States of America
|
| Phase: | En route |
| Nature: | Executive |
| Departure airport: | Lancaster, CA (KWJF) |
| San Jose, CA (KSJC) | |
| Investigating agency: | NTSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
WHILE IN CRUISE FLIGHT AT 10,000 FEET MEAN SEA LEVEL, THE ENGINE SUDDENLY QUIT. THE PILOT DECLARED AN EMERGENCY AND RECEIVED VECTORS TO A SMALL AIRSTRIP. THE PILOT COULD NOT LOCATE THE AIRSTRIP AND ELECTED TO LAND ON A ROAD; HOWEVER, POWER LINES PREVENTED ITS USE. THE PILOT LANDED IN AN ADJACENT FIELD AND THE AIRPLANE NOSED OVER IN SOFT TERRAIN. AN EXAMINATION OF THE ENGINE REVEALED THAT THE CRANKSHAFT GEAR TEETH HAD FAILED DUE TO FATIGUE. INTERNAL ENGINE GEARS MATING TO THE CRANKSHAFT GEAR WERE NOT DAMAGED. THE CRANKSHAFT WAS INSTALLED IN THE ACCIDENT ENGINE 644 HOURS PRIOR TO THE ACCIDENT AFTER BEING MAGNAFLUXED AND NITRIDE. NO RECORDS OF THE CRANKSHAFT MAINTENANCE HISTORY, PRIOR TO INSTALLATION IN THE ACCIDENT ENGINE, WERE LOCATED.
Probable Cause: a fatigue failure of the crankshaft gear teeth.
Accident investigation:
 |
|
Sources:
NTSB LAX94LA219
Location
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 16-Mar-2024 07:42 | 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