Accident · 1990-07-14
What the record says
- Event date
- 1990-07-14
- Event type
- Accident
- Highest injury level
- Serious injury
- Aircraft
- BELL 206L-1 (N300AH)
- Operating rule
- Part 135
- Operator
- ALASKA HELICOPTERS Operator named in NTSB report
- Operated by (per NTSB report)
- ALASKA HELICOPTERS, INC.
Probable cause
AN INTERNAL ENGINE FAILURE DUE TO A THERMAL FATIGUE FAILURE OF THE 1ST STAGE TURBINE WHEEL AS A RESULT OF OVERTEMPERATURE. THE HIGH ROUGH/UNEVEN TERRAIN PREVENTED A SUCCESSFUL AUTOROTATION.
Source: NTSB case ANC90FA117Flight crew
Flight-crew details for this event aren't in the NTSB database extract we hold (its coverage starts with 2008 events) — a gap in our data, not an absence of crew.
Facts as the NTSB records them — GroundCheck adds no judgement. Preliminary records may be revised as the investigation proceeds.