What was found
FRETTING CORROSION ON FLANGE SURFACE AND PILOT DIAMETERS (UPPER AND LOWER)
- Difficulty date
- January 6, 1998
- Submitted
- March 26, 2000
- Operation
- Air carrier
- Aircraft
- N2148K
- Make and model
- Bell 412
- Aircraft serial
- 36001
- System (JASC)
- 6320 · Main Rotor Gearbox
- Part
- Ring Gear
- Part number
- 205040231009
- Condition
- Corroded
- Location
- M/R Gr Box
- 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.