What was found
(CAN) PILOT REPORTED SUDDEN HIGH FREQUENCY VIBRATION DURING FLIGHT. ABORTED FLIGHT, LANDED. INSPECTION REVEALED OIL COOLER BLOWER BEARING WITH EXCESS WEAR. BLOWER ASSY REPLACED. NO VIBRATION NOTED ON RETURN TO SERVICE.
- Difficulty date
- February 15, 2012
- Submitted
- September 14, 2015
- Operation
- General aviation
- Make and model
- Hughes 369D
- Aircraft time
- 11,662 hours
- Engine
- Allsn 250C20B
- System (JASC)
- 7311 · Engine Fuel/Oil Cooler
- Part
- Bearing
- Part number
- NPN
- Condition
- Worn
- Location
- Oil Cooler Blwer
- Part time
- 751 hours
- Stage of operation
- CR
- How discovered
- O
- Nature of condition
- E
- Precautionary procedure
- A
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.