What was found
(AUS) MAIN ROTOR MAST BEARING LOCKPLATE CRACKED. SUSPECT LOSS OF TORQUE LOADING ON MAST BEARING CAUSED VIBRATION LEADING TO THE LOOSE AND SHEARED RIVETS ON THE SWASHPLATE SUPPORT.
- Difficulty date
- May 9, 1998
- Submitted
- March 26, 2000
- Operation
- General aviation
- Make and model
- Snias AS350B
- Engine
- Tmeca ARRIEL1B
- System (JASC)
- 6230 · Main Rotor Mast/Swashplate
- Part
- Lockplate
- Part number
- 350A37118322
- Condition
- Cracked
- Location
- M/R Mast
- Component
- 350A3710760
- 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.