What was found
IN FLIGHT CAS SHOWED FADEC DEGRADE THEN A RESTART FAULT, HMU REPLACEMENT.
- Difficulty date
- July 31, 2022
- Submitted
- August 2, 2022
- Operation
- Air carrier
- Aircraft
- N135AM
- Make and model
- Bell 407
- Aircraft serial
- 54385
- Aircraft time
- 3,601 hours, 12,798 cycles
- Engine
- Allsn 250C47B
- Engine time
- 14,872 hours, 13,135 cycles
- System (JASC)
- 7300 · Engine Fuel and Control
- Part
- Hmu
- Part number
- M25010151
- Part serial
- JGALM1965
- Condition
- Faulted
- Location
- Engine
- Part time
- 2,586 hours
- Stage of operation
- NR
- How discovered
- O
- Nature of condition
- J
- Precautionary procedure
- D
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.