What was found
DURING A POST-FLIGHT INSPECTION, DARK BLACK GREASE WAS FOUND ON THE M/R TRUNNION. REMOVED AND DISASSEMBLED M/R TRUNNION. ONE TRUNNION BEARING HAD TOTALLY FAILED. INNER AND OUTER RACES WERE BROKEN. (X)
- Difficulty date
- July 10, 2000
- Submitted
- October 19, 2000
- Operation
- General aviation
- Aircraft
- N911KW
- Make and model
- Bell 212
- Aircraft serial
- 30592
- System (JASC)
- 6220 · Main Rotor Head
- Part
- Bearing
- Part number
- 204011110005
- Condition
- Failed
- Location
- M/R Hub
- Part time
- 1,929 hours
- Component
- M/R Hub
- Component part number
- 20401210129
- 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.