ASN Wikibase Occurrence # 287436
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: | Wednesday 29 August 2012 |
| Time: | 14:30 LT |
| Type: |  Air Tractor AT-301 |
| Owner/operator: | Beta Ag Inc |
| Registration: | N23960 |
| MSN: | 301-0448 |
| Year of manufacture: | 1982 |
| Total airframe hrs: | 10294 hours |
| Engine model: | P&W R-1340 AN-1 |
| Fatalities: | Fatalities: 0 / Occupants: 1 |
| Aircraft damage: | Substantial |
| Category: | Accident |
| Location: | Ralls, Texas -
 United States of America
|
| Phase: | Manoeuvring (airshow, firefighting, ag.ops.) |
| Nature: | Agricultural |
| Departure airport: | Crosbyton, TX (8F3) |
| Crosbyton, TX (8F3) | |
| Investigating agency: | NTSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
The pilot reported that, while conducting aerial application operations, the engine sputtered and then experienced a complete loss of power. During the forced landing, the airplane nosed over and then came to rest inverted. A postaccident examination of the engine revealed a fatigue failure of the rocker arm journal casting of the rocker arm cap, which resulted in the complete separation of the rocker arm and failure of the exhaust valve.
Probable Cause: The total loss of engine power due to a fatigue failure of the rocker arm journal casting of the rocker arm cap.
Accident investigation:
 |
|
Sources:
NTSB CEN12LA589
Location
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 04-Oct-2022 10:52 | 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