ASN Wikibase Occurrence # 368454
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 7 July 1989 |
| Time: | 14:00 LT |
| Type: |  Bell 206B |
| Owner/operator: | Weyerhaeuser Company |
| Registration: | N53W |
| MSN: | 945 |
| Total airframe hrs: | 11731 hours |
| Engine model: | Allison 250-C20B |
| Fatalities: | Fatalities: 0 / Occupants: 1 |
| Aircraft damage: | Substantial |
| Category: | Accident |
| Location: | Longview, WA -
 United States of America
|
| Phase: | En route |
| Nature: | Unknown |
| Departure airport: | Chehalis, WA |
| Investigating agency: | NTSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
THIS HELIOCPTER HAD JUST DEPLETED THE FUEL IN AN EXTERNAL BURNING UNIT AND WAS RETURNING TO A STAGING AREA WHEN THE HELICOPTER ENGINE QUIT. THE PILOT STATED HE HAD TURNED OFF THE EXTERNAL UNIT JUST BEFORE THE ENGINE FAILURE. EXAMINATION OF THE HELICOPTER ENGINE AND FUEL SYSTEM REVEALED NO DISCREPANCIES. IT WAS OBSERVED THAT THE OPERATOR HAD LOCATED THE EXTERNAL UNIT CONTROL SWITCH ABOUT THREE INCHES ABOVE THE MAIN FUEL SHUTOFF SWITCH. AFTER THE ACCIDENT, THE EXTERNAL SWITCH WAS FOUND 'ON' AND THE MAIN FUEL SHUTOFF SWITCH WAS FOUND 'OFF'.
Probable Cause: THE PILOT INADVERTENTLY TURNING OFF THE ENGINE FUEL SUPPLY INSTEAD OF THE EXTERNAL LOAD FUEL SUPPLY. CONTRIBUTING TO THE ACCIDENT WAS THE PILOT'S FAILURE TO JETTISON THE EXTERNAL LOAD DURING THE AUTOROTATION.
Accident investigation:
 |
|
Sources:
NTSB SEA89LA128
Location
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 23-Mar-2024 18:37 | 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