Accident · 2003-07-21
What the record says
- Event date
- 2003-07-21
- Event type
- Accident
- Highest injury level
- Minor injury
- Aircraft
- Hughes 369D (N1091S)
- Operating rule
- Part 135
- Operator
- Temsco Helicopters, Inc Matched by aircraft (N-number)
Probable cause
The improper installation of a bolt in the gas generator governor linkage by company maintenance personnel, which resulted in a loss of the bolt, a loss of engine power while maneuvering, and subsequent forced landing and collision with trees. Factors contributing to the accident were an inadequate preflight inspection by the pilot, and an uncommanded surge in engine power.
Source: NTSB case ANC03LA082Flight 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.