What was found
ENGINE REMOVED DUE TO A CRACKED EXHAUST COLLECTOR. NR 5 BEARING PROBABLE SPALLING ON OUTER RACE SPLIT. RETURNED TO MFG FOR FURTHER EVALUATION.
- Difficulty date
- August 11, 2015
- Submitted
- August 12, 2015
- Operation
- General aviation
- Aircraft
- N433PH
- Make and model
- Bell 407
- Aircraft serial
- 53421
- Aircraft time
- 5,084 hours
- Engine
- Allsn 250C47B
- Engine time
- 10,753 hours
- System (JASC)
- 7250 · Turbine Section
- Part
- Bearing
- Part number
- M25010106
- Part serial
- NWC140070
- Condition
- Spalled
- Location
- Engine
- Part time
- 934 hours
- Stage of operation
- IN
- How discovered
- V
- Nature of condition
- O
- Precautionary procedure
- K
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.