ASN Wikibase Occurrence # 354652
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| Date: | Monday 30 March 1998 |
| Time: | 13:30 LT |
| Type: |  Aerospatiale AS 350B |
| Owner/operator: | Rotor Air Alaska, Inc. |
| Registration: | N158EH |
| MSN: | 2055 |
| Year of manufacture: | 1987 |
| Total airframe hrs: | 4436 hours |
| Engine model: | Turbomeca ARRIEL 1B |
| Fatalities: | Fatalities: 0 / Occupants: 1 |
| Aircraft damage: | Substantial |
| Category: | Accident |
| Location: | Soldotna, AK -
 United States of America
|
| Phase: | Landing |
| Nature: | Private |
| Departure airport: | Rotor Airstrip, AK |
| (KSXQ) | |
| Investigating agency: | NTSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
The pilot was practicing slope landings in preparation for an upcoming check ride. According to the pilot, he was positioning the helicopter close to the hill in order to start the maneuver. The next thing the pilot recalls, the helicopter had rolled to its left, and was upside down and on top of the hill that he was attempting to land beside. The day following the accident, the pilot reported that he now suspected that the tail rotor drive shaft became disengaged, and caused the accident. The forward tail rotor shaft assembly, and a portion of the adjoining rear tail rotor drive shaft were examined by the NTSB Materials Laboratory for inspection. The inspection discovered no evidence of an in-flight disengagement of the tail rotor drive shaft assembly prior to impact.
Probable Cause: The pilot's inadvertent dynamic rollover while performing a slope landing. Factors associated with the accident are the presence of rough and uneven terrain, and the pilot's improper slope landing technique.
Accident investigation:
 |
|
Sources:
NTSB ANC98LA032
Location
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 11-Mar-2024 16:52 | ASN Update Bot | Added |
Corrections or additions? ... Edit this accident description
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