What was found
TURBINE WAS REMOVED DUE TO METAL IN OIL. INSPECTION REVEALED SPALLING ON INNER RACE COUPLING BEARING RACE. INSTALLED NEW INNER RACE COUPLING.
- Difficulty date
- March 29, 2002
- Submitted
- April 29, 2002
- Operation
- General aviation
- Aircraft
- N131
- Make and model
- Bell TH57A
- Aircraft serial
- 162817
- Aircraft time
- 11,494 hours
- Engine
- Allsn 250C18
- System (JASC)
- 7250 · Turbine Section
- Part
- Bearing Race
- Part number
- 23071309
- Part serial
- KU103370
- Condition
- Spalled
- Location
- Turbine Section
- Part time
- 727 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.