What was found
ENGINE REMOVED 6-18-17 DUE TO LOW POWER. THE NR 5 BEARING EXHIBITED SPALLING ON OUTER RACE AT SPLIT. INSTALLED UPGRADED NR 5 BEARING.
- Difficulty date
- July 5, 2017
- Submitted
- July 7, 2017
- Operation
- Air carrier
- Aircraft
- N403PH
- Make and model
- Bell 407
- Aircraft serial
- 53267
- Aircraft time
- 12,082 hours
- Engine
- Allsn 250C47B
- Engine time
- 9,726 hours
- System (JASC)
- 7250 · Turbine Section
- Part
- Bearing
- Part number
- M25010106
- Part serial
- NWF151775
- Condition
- Spalled
- Location
- Engine
- Part time
- 238 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.