What was found
TUNGSTON COATING FLAKED OFF. SERIAL NUMBERS REMOVED ARE A28, A374, A395, AND A564. SEE MMIR# HEEA0008634 FOR ADDITIONAL RETENTION BOLTS REPLACED.
- Difficulty date
- December 9, 1996
- Submitted
- March 26, 2000
- Operation
- Air carrier
- Aircraft
- N23023
- Make and model
- Bell 412
- Aircraft serial
- 33080
- System (JASC)
- 6220 · Main Rotor Head
- Part
- Bolt
- Part number
- 412010124109
- Condition
- Defective
- Location
- M/R Head
- Part time
- 2,585 hours
- 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.