What was found
DURING C4/S1 C-CHECK, INSP NOTED THE LT SIDE HORIZONTAL STABILIZER OTBD L/E RIB WHERE THE HORIZONTAL STABILIZER SECURES TO, HAS SURFACE CORROSION. MX REPAIRED RIB IAW EA A8-55R-31516 AND IAW SRM 51-74-00, NTM 51-10-04-270-801-A-01, NTM 51-10-08-250-803-A-01, SRM 51-75-12 AND SRM 51-42-11.