ASN Wikibase Occurrence # 286464
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| Date: | Monday 19 October 2009 |
| Time: | 13:30 LT |
| Type: |  Hughes 369E |
| Owner/operator: | SC Law Enforcement Division |
| Registration: | N502SL |
| MSN: | 0244E |
| Year of manufacture: | 1987 |
| Total airframe hrs: | 4961 hours |
| Engine model: | Allison 250-C20B |
| Fatalities: | Fatalities: 0 / Occupants: 2 |
| Aircraft damage: | Substantial |
| Category: | Accident |
| Location: | Winnsboro, South Carolina -
 United States of America
|
| Phase: | Manoeuvring (airshow, firefighting, ag.ops.) |
| Nature: | Training |
| Departure airport: | Columbia, SC (2SC6) |
| Winnsboro-Fairfield County Airport, SC (KFDW) | |
| Investigating agency: | NTSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
During an instructional flight while in a three-foot hover, the certified flight instructor (CFI) applied right anti-torque pedal input with the intention of simulating loss of tail rotor thrust while in a hover. The student correctly reduced throttle and both occupants agree that the helicopter contacted the ground. While neither occupant agrees as to who applied throttle control, throttle control input was applied and the helicopter became airborne with slow main rotor rpm. The CFI took the controls and attempted to cushion the landing, but the helicopter landed hard. There were no reported preimpact failures or malfunctions. After the accident the engine was placed in a test cell and operated to full power with no evidence of failure or malfunction.
Probable Cause: The flight instructor's failure to monitor the simulated emergency procedure, resulting in a hard landing. Contributing to the accident was the intentional throttle application by one of the flightcrew.
Accident investigation:
 |
|
Sources:
NTSB ERA10LA023
Location
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 03-Oct-2022 11:11 | ASN Update Bot | Added |
Corrections or additions? ... Edit this accident description
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