As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING C4/S1 CHECK, INSPECTION REPORTED TWO CORRODED FASTENERS IN THE R2 AFT GIRT BAR MOUNT PLATE. BLENDED OUT CORROSION ON OTBD MIDDLE FASTENER HOLE, BOTTOM SIDE OF SILL PLATE IAW SRM 51-22-00 - WITHIN LIMITS IAW SRM 53-41-14-PG103/104. INSTALLED AFT GIRT BAR MOUNT PLATE IAW SRM 51-42-11.