What was found
DURING HEAVY CHECK, FLAP TRACK SUPPORT 4 FWD MOUNT COTTER PIN IS CORRODED. MAINTENANCE R & R FLAP TRACK SUPPORT 4 FWD MOUNT COTTER PIN IAW AMM 57-57-31.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
DURING HEAVY CHECK, FLAP TRACK SUPPORT 4 FWD MOUNT COTTER PIN IS CORRODED. MAINTENANCE R & R FLAP TRACK SUPPORT 4 FWD MOUNT COTTER PIN IAW AMM 57-57-31.