What was found
DURING HEAVY MAINTENANCE: CORROSION: CORROSION: FUSELAGE SKIN FR81-82 STR27-28R; (RESOLVED ON W/O: 1300462 TASKCARD: NR-00020) DEEMED OUT OF LIMITS IAW SRM 51-12-01, 51-10-03, AND 53-23-01/AD51. ACCOMPLISHED REPAIR FUSELAGE SKIN FR81-82 STR27/28R IAW SRM 53-23-01/REPAIR 62P. REQ'S REINSPECT @ 20,000FC/26,600FH (WHICHEVER OCCURS FIRST) WITH SUBSEQUENT INSPECTIONS EVERY 9,000FC/11,970FH (WHICHEVER OCCURS FIRST). FUR-E190-53-01238 CREATED.