What was found
INSPECTED AIRCRAFT, FOUND DARK GRAY GREASE COMING FROM THE BEARINGS. IF THE EXPELLED GREASE HAS TURNED BLACK, THE BEARING MUST BE REMOVED FROM SERVICE.
- Difficulty date
- June 5, 2002
- Submitted
- June 26, 2002
- Operation
- Air carrier
- Aircraft
- N407NN
- Make and model
- Bell 407
- Aircraft serial
- 53250
- Engine
- Allsn 250C*
- System (JASC)
- 7921 · Engine Oil Cooler
- Part
- Bearing
- Part number
- 407340339101
- Part serial
- ZV11135ZC11136
- Condition
- Failed
- Location
- Cooler Blower
- Part time
- 242 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.