What was found
MAIN ROTOR MAST NUT HAS PITTING CORROSION BEYOND REPAIR LIMITS.
- Difficulty date
- January 16, 2012
- Submitted
- January 17, 2012
- Operation
- Air carrier
- Aircraft
- N9YONE
- Make and model
- Bell 412EP
- Aircraft serial
- 36421
- Aircraft time
- 5,034 hours
- System (JASC)
- 6230 · Main Rotor Mast/Swashplate
- Part
- Nut
- Part number
- 412040104103
- Condition
- Corroded
- Location
- Zone 200
- Component
- Mast Assy · Bell
- Component part number
- 412040366113
- 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.