ASN Wikibase Occurrence # 198619
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| Date: | Thursday 9 May 2013 |
| Time: | 14:00 |
| Type: |  Bell OH-58C |
| Owner/operator: | Georgia Aviation Authority |
| Registration: | N927SP |
| MSN: | 40522 |
| Year of manufacture: | 1969 |
| Total airframe hrs: | 9837 hours |
| Engine model: | Rolls Royce T63-A-720 |
| Fatalities: | Fatalities: 0 / Occupants: 2 |
| Aircraft damage: | Substantial |
| Category: | Accident |
| Location: | Jekyll Island, GA -
 United States of America
|
| Phase: | Landing |
| Nature: | Unknown |
| Departure airport: | Jekyll Island, GA (09J) |
| Jekyll Island, GA (09J) | |
| Investigating agency: | NTSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
As part of the training and evaluation flight, the pilot was demonstrating to the instructor a simulated engine failure and autorotation to touchdown with the engine throttle at the idle setting throughout the maneuver. At the termination of the maneuver, the pilot increased collective pitch to stretch the glide, and the rotor rpm was allowed to decay to the lower end of the normal operating range. He then "abruptly" flared the helicopter to slow its ground speed and added additional collective pitch to level the helicopter. The rotor rpm decayed further, the helicopter landed hard, and the main rotor struck the tailboom, severing the tail rotor driveshaft. Both pilots reported that there were no mechanical malfunctions or failures with the helicopter that would have precluded normal operation.
Probable Cause: The pilot's failure to maintain rotor rpm in the normal operating range during a practice autorotation, which resulted in a hard landing. Contributing to the accident was the inadequate supervision by the flight instructor.
Accident investigation:
 |
|
Sources:
NTSB
Location
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 19-Aug-2017 13:27 | ASN Update Bot | Added |
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