ASN Wikibase Occurrence # 133323
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| Date: | Friday 1 November 1996 |
| Time: | 13:30 LT |
| Type: |  Bell 206B |
| Owner/operator: | Donald A. Parrish |
| Registration: | N90144 |
| MSN: | 1623 |
| Year of manufacture: | 1975 |
| Engine model: | Allison 250-C20B |
| Fatalities: | Fatalities: 0 / Occupants: 1 |
| Aircraft damage: | Destroyed |
| Category: | Accident |
| Location: | Supai, AZ -
 United States of America
|
| Phase: | Taxi |
| Nature: | Unknown |
| Departure airport: | |
| Investigating agency: | NTSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
The helicopter was was being used in an external lift operation, moving supplies of salt to a storage location. The pilot reported that he was lifting to a hover over a loaded cargo net, unaware that the external load cable was draped over one of the skids. As the cable took the strain of the load, the helicopter rolled, and the lateral control limit was exceeded. The pilot released the load with an electrical switch; however, before control was regained, the helicopter contacted the ground, nose low, and the main rotor blades struck the ground. The pilot reported that from initial down-force on the skid until impact, the time frame was less than 4 seconds. He also reported no mechanical malfunction with the helicopter.
Probable Cause: improper routing of the external cargo hoist cable (over helicopter skid), which resulted in lateral imbalance and roll-over of the helicopter, as weight on the cable became effective.
Accident investigation:
 |
|
Sources:
NTSB LAX97LA030
Location
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 21-Dec-2016 19:26 | ASN Update Bot | Updated [Time, Damage, Category, Investigating agency] |
| 08-Apr-2024 18:14 | ASN Update Bot | Updated [Time, Operator, Other fatalities, Phase, Nature, Source, Narrative, Category, Accident report] |
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