ASN Wikibase Occurrence # 374449
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: | Friday 8 August 1986 |
| Time: | 08:15 LT |
| Type: |  Bell 47G-4A |
| Owner/operator: | Shafter Aviation Inc. |
| Registration: | N1185W |
| MSN: | 7513 |
| Year of manufacture: | 1966 |
| Total airframe hrs: | 7723 hours |
| Engine model: | LYCOMING VO-540 |
| Fatalities: | Fatalities: 0 / Occupants: 1 |
| Aircraft damage: | Substantial |
| Category: | Accident |
| Location: | Shafter, CA -
 United States of America
|
| Phase: | Initial climb |
| Nature: | Agricultural |
| Departure airport: | |
| Investigating agency: | NTSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
SHORTLY AFTER DEPARTING THE LOADING RIG, EN ROUTE TO AN AGRICULTURAL AERIAL APPLICATION OPERATION, THE FORWARD COUPLING TAIL ROTOR DRIVE SHAFT FAILED. THE HELICOPTER WAS ABOUT 10 FT ABOVE GROUND LEVEL AND ABOUT 100 FT WEST OF THE LOADING RIG. THE PILOT ATTEMPTED AN IMMEDIATE AUTOROTATION BUT COLLIDED WITH THE GROUND AND ROLLED OVER. EXAMINATION OF THE WRECKAGE DISCLOSED THE COUPLING SUSTAINED EXTREME HIGH TEMP DISTRESS DUE TO LACK OF LUBRICATION. THE HELICOPTER HAD FLOWN 178 HOURS SINCE THE LAST ANNUAL/100-HOUR INSPECTION. A 100-HOUR INSPECTION IS REQUIRED FOR THE OPERATION.
Probable Cause:
Accident investigation:
 |
|
Sources:
NTSB LAX86DVA13
History of this aircraft
Other occurrences involving this aircraft
| 13 February 1993 | N1185W | Inland Crop Dusting, Inc. | 0 | Bakersfield, CA | |
sub |
Location
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 28-Mar-2024 09:35 | 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