ASN Wikibase Occurrence # 385308
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: | Sunday 22 October 2000 |
| Time: | 08:07 LT |
| Type: |  Aerospatiale AS 350BA |
| Owner/operator: | Mauna Kea Helicopters |
| Registration: | N12NT |
| MSN: | 1670 |
| Year of manufacture: | 1982 |
| Total airframe hrs: | 7227 hours |
| Engine model: | Turbomeca ARRIEL 1B |
| Fatalities: | Fatalities: 0 / Occupants: 1 |
| Aircraft damage: | Substantial |
| Category: | Accident |
| Location: | Kamuela, HI -
 United States of America
|
| Phase: | En route |
| Nature: | Ferry/positioning |
| Departure airport: | , HI (KMUE) |
| Investigating agency: | NTSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
A hard autorotation landing resulted from a loss of engine power in the takeoff initial climb. Inspection of the engine after the accident revealed that the engine gas generator compressor/turbine shaft was seized. The engine was overhauled 61 hours prior to the accident. The gas generator turbine aft support bearing was found dislodged from the bearing support cage. A circlip used to retain the bearing in the cage was not present and there was no evidence of the circlip having been installed during overhaul. The autorotation was made to an area of dirt and rocks that had a slight upslope.
Probable Cause: A total loss of engine power due to the failure of the engine manufacturer's repair station personnel to install a circlip during engine overhaul, which resulted in the turbine assembly aft support bearing becoming dislodged and seized on the shaft. A factor in the accident was the rough and uneven nature of the landing site terrain.
Accident investigation:
 |
|
Sources:
NTSB LAX01LA025
Location
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 04-Apr-2024 17:14 | ASN Update Bot | Added |
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