What was found
IN CRUISE, AIRCRAFT DEVELOPED SEVERE VERTICAL VIBRATION. FOUND FORWARD BEARING ON NR 2 TAIL ROTOR OIL COOLER BLOWER SHAFT FAILURE.
- Difficulty date
- October 16, 2001
- Submitted
- November 12, 2001
- Operation
- General aviation
- Aircraft
- N4999
- Make and model
- Bell 407
- Aircraft serial
- 53323
- Aircraft time
- 2,724 hours
- System (JASC)
- 6510 · Tail Rotor Drive Shaft
- Part
- Shaft
- Condition
- Failed
- Location
- Cooler Blower
- Stage of operation
- CR
- How discovered
- O
- Nature of condition
- E, J
- Precautionary procedure
- A
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.