What was found
CORROSION FOUND ON TUNGSTEN CARBIDE AREA OF MAST POLE. SENT TO HELICOPTER FOR EVALUATION IAW ASB 407-11-94 MANUAL.
- Difficulty date
- February 1, 2012
- Submitted
- February 2, 2012
- Operation
- Air carrier
- Aircraft
- N507AL
- Make and model
- Bell 407
- Aircraft serial
- 53103
- Aircraft time
- 10,573 hours
- Engine
- Allsn 250C47B
- System (JASC)
- 6230 · Main Rotor Mast/Swashplate
- Part
- Mast
- Part number
- 407040038111
- Part serial
- N22
- Condition
- Corroded
- Location
- Main Rotor
- Part time
- 2,195 hours
- Component
- Mast Assy · Bell
- Component part number
- 407040011107FM
- 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.