As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
SHV - DURING C-CHECK MAINTENANCE FOUND THE SVC DOOR CUTOUT AT FRM 22 WITH CORROSION AROUND TRIM NUT PLATE, BELOW LOWER AFT DOOR STOP. MAINTENANCE INSTALLED DOUBLER AT THE SVC DOOR CUTOUT FRM 22 LOWER AFT CORNER AT NUT PLATE AREA IAW EC 5310-01373. AIRCRAFT APPROVED TO RETURN FOR SERVICE.