What was found
(CAN) DURING THE DAILY INSPECTION IT WAS NOTICED THAT 1 TAIL ROTOR YOKE FEATHERING BEARING OUTER RACE STAKE HAD FAILED. UPON FURTHER INVESTIGATION ALL 4 TAIL ROTOR YOKE FEATHERING BEARING OUTER RACE STAKES HAD FAILED.
- Difficulty date
- September 4, 2014
- Submitted
- March 12, 2015
- Operation
- General aviation
- Make and model
- Bell 412EP
- Aircraft time
- 4,170 hours
- Engine
- Pwa PT6T3
- System (JASC)
- 6420 · Tail Rotor Head
- Part
- Yoke
- Part number
- 212011702001
- Condition
- Unserviceable
- Location
- Tailrotor
- Part time
- 2,780 hours
- Stage of operation
- IN
- How discovered
- 9
- Nature of condition
- O
- Precautionary procedure
- K
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.