What was found
EXISTING REPAIR LOC. FR 53 AT LEVEL STR 36L ON AFT CARGO COMPARMENT REFERENCE WC 5311-01200-01, AD 2023-06-08. NO MAINTENANCE ACTION TAKEN DUE TO INSPECTION ON TACK HOLES FRAME 53 STRG 36L TO 37L IS COVERED BY EXISTING REPAIR AND IS N/A IAW ER/A 598460-14AD REV C,PRI REV 0 & SECTION III STEP 2. COMPLIED WITH ER/A 598460-14AD REV C. MATCHES WITH ALL STEP ON PRI598460-14AD REV C PRI REV 0 IT HAS BEEN VALIDATED PERFORMED REPAIR INSTRUCTION LOC. FR 53 AT LEVEL STR 36L /37L ON AFT CARGO BAY IAW ER/A 598460-14AD REV C SECTION III HAS BEEN COMPLIED WITH APPROVED DATE 14-APR-26 SEE LOG PAGE 2416271 FORTIME CONTROLLED ITEMS SECTION II ASSOCIATED ER/A 00-598460 ADDED FOR AC 3270. (LP: 1546225) AIRCRAFT WAS GROUNDED