What was found
(AUS) MAIN ROTOR MAST UPPER BEARING FAULTY. INVESTIGATION FOUND ONE BALL TO HAVE SEVERE PITTING/BRINELLING WITH THE OUTER RACE SHOWING SIGNS OF FAILURE. PART TC: 1,224.
- Difficulty date
- August 24, 1998
- Submitted
- March 26, 2000
- Operation
- General aviation
- Make and model
- Bell 206B3
- Engine
- Allsn 250C20B
- System (JASC)
- 6230 · Main Rotor Mast/Swashplate
- Part
- Bearing
- Part number
- 206040036103
- Condition
- Failed
- Location
- M/R Mast
- Stage of operation
- IN
- Nature of condition
- O
- Precautionary procedure
- K
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.