ASN Wikibase Occurrence # 294358
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| Date: | Sunday 14 November 2004 |
| Time: | 16:00 LT |
| Type: |  Enstrom 280C |
| Owner/operator: | Tlc Helicopter Services Inc. |
| Registration: | N51739 |
| MSN: | 1141 |
| Total airframe hrs: | 5526 hours |
| Engine model: | Lycoming HIO-360 |
| Fatalities: | Fatalities: 0 / Occupants: 2 |
| Aircraft damage: | Substantial |
| Category: | Accident |
| Location: | Galloo Island, New York -
 United States of America
|
| Phase: | Unknown |
| Nature: | Unknown |
| Departure airport: | Syracuse-Hancock International Airport, NY (SYR/KSYR) |
| Galloo Island, NY | |
| Investigating agency: | NTSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
While conducting aerial photography operations, at an altitude about 80 feet agl and at an estimated groundspeed of 20 knots, the helicopter's engine experienced a partial loss of power. The pilot then performed the emergency checklist and configured the helicopter for an autorotation. As the helicopter descended the pilot reported that the rotor and the engine would not "separate," and the rotor rpm continued to decrease. The helicopter impacted the ground hard, incurring damage to a main rotor blade and the tail boom. The engine was test run at idle rpm following the accident, and found to operate normally. Subsequent disassembly and examination of the engine and the clutch revealed no anomalies. A review of the height velocity diagram for the helicopter showed that given the conditions at the time of the accident, the helicopter was being operated outside of the safe operating area.
Probable Cause: A partial loss of engine power for undetermined reasons. A factor was the pilot's improper decision to operate the helicopter outside the height velocity curve.
Accident investigation:
 |
|
Sources:
NTSB IAD05LA031
History of this aircraft
Other occurrences involving this aircraft
| 9 June 1993 | N51739 | Horizon Helicopters, Inc. | 0 | Glen Mills, PA | |
sub |
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 11-Oct-2022 15:46 | ASN Update Bot | Added |
Corrections or additions? ... Edit this accident description
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