As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
* L/H AILERON OBD HINGE BOLT OBD RETAINER HARDWARE CORRODED. (C-CHECK) RO 12/13/2019 ORDERED AND RECEIVED NEW L/H OBD HINGE BOLTS OBD RETAINER HARDWARE; BOLTS (2EA) AND WASHERS (2EA). INSTALLED ON JOB 2780375 OP 5174 AND TRANS # 19723205.