ASN Wikibase Occurrence # 308667
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| Date: | Friday 26 February 2021 |
| Time: | 16:40 LT |
| Type: |  Robinson R44 |
| Owner/operator: | Top Gun Precision Ag LLC |
| Registration: | N7184N |
| MSN: | 0116 |
| Year of manufacture: | 1999 |
| Total airframe hrs: | 1749 hours |
| Engine model: | Lycoming O-540-F1B5 |
| Fatalities: | Fatalities: 0 / Occupants: 3 |
| Aircraft damage: | Substantial |
| Category: | Accident |
| Location: | Dunn, Texas -
 United States of America
|
| Phase: | Manoeuvring (airshow, firefighting, ag.ops.) |
| Nature: | Unknown |
| Departure airport: | Dunn, TX |
| Dunn, TX | |
| Investigating agency: | NTSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
The pilot and two passengers were completing an aerial gunning flight. The helicopter was flying at 80 ft above ground level (agl), when the pilot heard the 'rotors droop” and the 'engine bog down.” He stated that he applied right pedal and increased the throttle input, but the engine did not respond. The helicopter descended into the trees and impacted the ground. The main rotor blades and fuselage sustained substantial damage. The investigation was unable to determine the airspeed of the helicopter and the reason for the loss of rotor RPM based on the available evidence. A postaccident examination and engine functional test run revealed no evidence of mechanical malfunctions or failures that would have precluded normal operation.
Probable Cause: The loss of rotor RPM for reasons that could not be determined based on available evidence.
Accident investigation:
 |
|
Sources:
NTSB CEN21LA155
Location
Revision history:
| Date/time | Contributor | Updates |
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