What was found
ON FINAL APPROACH, PILOT FELT A GRINDING IN THE FLIGHT CONTROLS. POST-FLIGHT INSPECTION REVEALED FORWARD OIL COOLER BLOWER BEARING FAILURE. FORWARD BEARING DISINTEGRATED (FAILED) AND DAMAGED SHAFT. (X)
- Difficulty date
- July 17, 2000
- Submitted
- August 4, 2000
- Operation
- General aviation
- Aircraft
- N577AL
- Make and model
- Bell 407
- Aircraft serial
- 53247
- System (JASC)
- 6322 · Rotorcraft Cooling Fan System
- Part
- Shaft
- Part number
- 406040320101
- Part serial
- AFS1408
- Condition
- Failed
- Location
- Oil Cooler
- Part time
- 550 hours
- Component
- Oil Cooler Blowe
- Component part number
- 407040303101
- 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.