As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
LEFT AILERON HINGE FITTING OUTBD HAS (2) CORRODED CASTLE NUTS. (C-CHECK RO 7/18/2021) ORDERED AND RECIEVED NEW FROM STOCK (2EA) NUTS, WASHERS AND COTTER PINS FOR THE LH AILERON OTBD HINGE FITTING. INSTALLATION ACCOMPLISHED ON JOB 2759080 OP 518 MX TRANS #22642852