ASN Wikibase Occurrence # 354595
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| Date: | Friday 17 April 1998 |
| Time: | 09:45 LT |
| Type: |  Bell 206B |
| Owner/operator: | Houston Helicopters, Inc. |
| Registration: | N59604 |
| MSN: | 1490 |
| Year of manufacture: | 1974 |
| Total airframe hrs: | 6345 hours |
| Engine model: | Allison 250-C20 |
| Fatalities: | Fatalities: 0 / Occupants: 5 |
| Aircraft damage: | Substantial |
| Category: | Accident |
| Location: | Cameron, LA -
 United States of America
|
| Phase: | Approach |
| Nature: | Unknown |
| Departure airport: | Gulf Of Mexico, GM |
| Investigating agency: | NTSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
During final approach, the pilot reported erratic engine and rotor rpm accelerations and droop. To arrest a high rate of descent, the pilot initiated a cyclic flare at 75 feet AGL and leveled the helicopter prior to touchdown. The helicopter landed 'hard' and the main rotor blades 'flexed' downward, separating the tail boom. Four passengers onboard thought the helicopter 'lost power.' The helicopter was within weight and balance limits for the flight. Examination of the engine and fuel system did not reveal any anomalies. Calibrated bench tests of the N1 tachometer, and the N2/rotor rpm dual tachometer showed that they were within limits. The fuel control, fuel pump, and power turbine governor were all found to be within overhaul specifications. Pneumatic lines were found intact.
Probable Cause: The loss of engine power for undetermined reasons and the pilot's improper flare which resulted in a hard landing.
Accident investigation:
 |
|
Sources:
NTSB FTW98LA187
Location
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 11-Mar-2024 16:13 | ASN Update Bot | Added |
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