What was found
DISCREPANCY: DURING ROUTINE MAINTENANCE CHECK, FUSELAGE SKIN WAS DISCOVERED LOOSE FASTENERS AND SOME FASTENERS HAD PULLED THROUGH, AT BS 1214, BL O TO LBL 4.5 CORRECTIVE ACTION: ACCOMPLISHED FUSELAGE SKIN REPAIR AT BA 1214, BL O TO LBL 17, AT WL 170 IAW B727 SRM 51-40-2. THE AIRCRAFT WAS RETURNED TO SERVICE.