Accident · 2003-05-11
What the record says
- Event date
- 2003-05-11
- Event type
- Accident
- Highest injury level
- No injuries
- Aircraft
- Bell 407 (N491PH)
- Operating rule
- Part 135
- Operator
- PHI Aviation, LLC Matched by aircraft (N-number)
Probable cause
The short circuit of the C321capacitor in the Electronic Control Unit (ECU) that resulted in a single-point failure of the ECU's -15V power supply which disengaged/reverted the Hydro-mechanical Unit (HMU) from automatic to manual fuel control. Factors contributing to the accident were the pilot's attempted remedial actions in the manual mode that resulted in the engine over temperature and loss of power, and the lack of suitable terrain for the forced landing.
Source: NTSB case FTW03FA148Flight 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.