What was found
DURING HEAVY MAINTENANCE: CORROSION AND BARE SKIN ON AREA COVERED BY THE PROTECTIVE PLATE ( SCUFF PLATE ) BTW FR76 & FR81, STR 28R/ 26R, AT AFT CARGO DOOR CUT OUT STRUCTURE; REF TOMX W.O. N239JB/2301/ E190/B8 CHECK: CORROSION ON AREA COVERED BY THE PROTECTIVE PLATE (SCUFF PLATE) BTW FR 77 & FR 80, STGR 28R/26R. AT AFT CARGO DOOR CUT OUT STRUCTURE WAS REMOVED PER EMB-190 SRM 51-10-03 AND EMB--190 SRM 51-12-01, BTW FR 76 & FR 80, STGR 28R/26R AT AFT CARGO DOOR CUT OUT STRUCTURE WAS EVALUATED,THEREFORE IT IS WITHIN LIMITS PER EMB-190 SRM 51-75-16 AND REPAIRED BTW FR 80-81, STGR 28R/26R. AT AFT CARGO DOOR CUT OUT STRUCTURE PER ETI-190-23-653 REV 1 AND ETD2023-190-020916 REV.