What was found
REJECT....CORROSION AFT CARGO COMPARTMENT Z - CHANNEL LOWER SURFACE AT STA 727D - STA727E RBL 21 WL 156 HAS CORROSION<[01] REMOVED CORROSION AT AFT CARGO COMPARTMENT Z CHANNEL LOWER SURFACE AT STA 727D-STA 727E RBL21 WL 156 PER REF SRM 51-10-02-0G-0;[02] STEP 1 ENTER IN ERROR;[03] REMOVED CORROSION ON AFT CARGO COMPT BETWEEN STA 727D TO STA 727E RBL 21; ON ZEE CHANNEL REF SRM 51-10-02-0G-0; EVALUATED AND FOUND TO BE OUT OF LIMITS REF SRM 53-00-53-1A-2. REF TASK 'TTG8Q00JZGZA' FOR ZEE CHANNEL REPLACEMENT;[04] VERIFIED STEP 3.