What was found
TWENTY-FIVE HOUR INSPECTION FOUND OIL COOLER BLOWER BEARINGS ROUGH. ALSO, SHAFT SPLINES SHOW SIGNS OF LACK OF LUBRICATION. SUBMITTER RECOMMENDED IMPROVING BEARING AND LUBRICATION ON SHAFT TO COUPLING SPLINES.
- Difficulty date
- November 11, 1997
- Submitted
- March 26, 2000
- Operation
- General aviation
- Aircraft
- N427AL
- Make and model
- Bell 407
- Aircraft serial
- 53107
- System (JASC)
- 6322 · Rotorcraft Cooling Fan System
- Part
- Bearing
- Part number
- 406040339105
- Condition
- Rough
- Location
- Nr 2 T/R Drive
- Part time
- 1,032 hours
- Component
- 407040303101
- Stage of operation
- IN
- Nature of condition
- O
- Precautionary procedure
- K
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.