What was found
ENGINE WAS MAKING UNUSUAL NOISE IN ALL PARAMETERS. WHEN ENGINE WAS SHUT DOWN, LOWER AND UPPER CHIP PLUGS WERE REMOVED AND BOTH PLUGS WERE FOUND TO CONTAIN METAL CHIPS.
- Difficulty date
- July 25, 2017
- Submitted
- July 26, 2017
- Operation
- Air carrier
- Aircraft
- N101HF
- Make and model
- Bell 407
- Aircraft serial
- 53463
- Aircraft time
- 6,283 hours, 22,181 cycles
- Engine
- Allsn 250C47B
- Engine time
- 349 hours, 766 cycles
- System (JASC)
- 7200 · Engine (Turbine/Turboprop)
- Part
- Engine
- Part number
- M25010672
- Part serial
- CAE848808
- Condition
- Making Metal
- Location
- Primary
- Part time
- 349 hours, 766 cycles
- Stage of operation
- LD
- How discovered
- O
- Nature of condition
- P
- Precautionary procedure
- K
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.