ASN Wikibase Occurrence # 133319
This information is added by users of ASN. Neither ASN nor the Flight Safety Foundation are responsible for the completeness or correctness of this information.
If you feel this information is incomplete or incorrect, you can submit corrected information.
| Date: | Monday 14 February 1994 |
| Time: | 19:02 LT |
| Type: |  Bell 206L-1 LongRanger II |
| Owner/operator: | Aspen Helicopters Inc. |
| Registration: | N1077N |
| MSN: | 45349 |
| Year of manufacture: | 1979 |
| Total airframe hrs: | 4826 hours |
| Engine model: | ALLISON 250-C30P |
| Fatalities: | Fatalities: 0 / Occupants: 1 |
| Aircraft damage: | Destroyed |
| Category: | Accident |
| Location: | Barstow, CA -
 United States of America
|
| Phase: | Landing |
| Nature: | Unknown |
| Departure airport: | |
| Investigating agency: | NTSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
The pilot intended to do several autorotations at the end of his daily flights to verify a new clutch assembly which was installed on the helicopter that morning. The pilot said that it was twilight, but that he could clearly see the runway lights when he lifted off to do the autorotations. The pilot made one successful autorotation and decided on a second one to check the main rotor rpm. The pilot said that during the second one the main rotor rpm was low, but he did not get a low rotor warning horn or light. The pilot said that during the descent he was trying to bring the main rotor rpm up by varying his airspeed until the flare point. Witnesses reported that the helicopter began a flare about 50 feet above the runway, then landed hard. The helicopter became airborne again, began to spin, and then landed hard, rolling onto its left side. No evidence of mechanical failure was found during an examination of the helicopter. Sunset occurred at 1733 and the end of civil twilight was at 1759. The accident was at 1802.
Probable Cause: the pilot's misjudgment of the landing flare altitude during a night autorotation while preoccupied with maintaining proper main rotor rpm. A factor in the accident was the pilot's visual perception which was affected by the outside ambient lighting conditions.
Accident investigation:
 |
|
Sources:
NTSB LAX94LA126
Location
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 21-Dec-2016 19:26 | ASN Update Bot | Updated [Time, Damage, Category, Investigating agency] |
| 10-Apr-2024 08:54 | ASN Update Bot | Updated [Time, Other fatalities, Source, Narrative, Category, Accident report] |
Corrections or additions? ... Edit this accident description
The Aviation Safety Network is an exclusive service provided by:
Quick Links:
| ASN Home | Send Correction / Feedback |
| FSF Home | Disclaimer | Copyright |
| Contact Us | Privacy Policy |
| Press / Media |
CONNECT WITH US:
©2024 Flight Safety Foundation