What was found
DURING HEAVY MAINTENANCE, CORROSION UPPER RIGHT WING SURFACE, TRAILING EDGE, BTW RIBS 18 AND 19 REF. HMV FLIGHTSTAR-VQQ, W/O# N653JB-02-01, NR # 0012 ; (RESOLVED ON W/O: 1121596 TASKCARD: NR-00013 ) REMOVED CORROSION AT UPPER RH WING SURFACE IAW A320 SRM 51-74-00. REMAINING MATERIAL IS OUT OF LIMITS IAW A320 SRM 57-21-11-283-007. COMPLIED WITH FAS EA 21075, REV IR & JETBLUE EC A21-1199-01. APPROVED BY AIRBUS RDAF 80978291/024/2021, ISSUE A, AS A PERMANENT REPAIR WITH A THRESHOLD OF 61,000 FC/110,000 FH, WHICH EVER COMES FIRST. REF FUR-A320-57-00177