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| Date: | Sunday 9 September 2012 |
| Time: | 10:52 LT |
| Type: |  Bell 206L-1 LongRanger II |
| Owner/operator: | Papillon Airways Inc |
| Registration: | N5745Y |
| MSN: | 45531 |
| Year of manufacture: | 1980 |
| Total airframe hrs: | 26520 hours |
| Engine model: | Rolls-Royce 250C30P |
| Fatalities: | Fatalities: 0 / Occupants: 2 |
| Other fatalities: | 0 |
| Aircraft damage: | Substantial |
| Category: | Accident |
| Location: | Grand Canyon, Arizona -
 United States of America
|
| Phase: | En route |
| Nature: | Test |
| Departure airport: | Grand Canyon-National Park Airport, AZ (GCN/KGCN) |
| Grand Canyon-National Park Airport, AZ (GCN/KGCN) | |
| Investigating agency: | NTSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
The pilot reported that, during a maintenance release flight, he entered a simulated autorotation to check the main rotor rpm. When the pilot retarded the throttle, the engine lost power. The pilot subsequently conducted an off-airport landing. During the landing, the main rotor blade struck the tailboom, which then separated from the airframe.
During postaccident engine test runs in both the airframe and a test cell, the engine ran normally. Postaccident engine examinations revealed no anomalies that would have precluded normal operation. The reason for the loss of engine power could not be determined.
Probable Cause: A total loss of engine power during descent for reasons that could not be determined because postaccident engine examinations and testing revealed no evidence of an anomaly that would have precluded normal operation.
Accident investigation:
 |
|
Sources:
NTSB WPR12LA408
History of this aircraft
Other occurrences involving this aircraft
| 2 January 1982 | N5745Y | Rocky Mountain Helicopters, In | 0 | Chamblee, GA | |
sub |
Location
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 04-Oct-2022 10:22 | ASN Update Bot | Added |
Corrections or additions? ... Edit this accident description
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