As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
SHV - DURING C-CHECK THE LOWER AFT CORNER OF THE SERVICE DOOR CUTOUT WAS FOUND TO BE CORRODED, FRAME 22 STRINGERS 14-15R. MAINTENANCE REMOVED THE CORROSION AND PERFORMED A DOUBLER REPAIR IAW EC 5310-01373. THE AIRCRAFT WAS APPROVED FOR RETURN TO SERVICE.