What was found
REAR FUSELAGE 2 SKIN, CRACKS FOUND AROUND RIVET ON FR 77 AND BETWEEN STR 3L-4L. FOR INVESTIGATION, PAINT REMOVED ON DAMAGED SKIN AREA, AT FR 77 AND BETWEEN STR 3L-4L. FASTENER AND SKIN DAMAGE ON FR 77 BETWEEN STR 3-4L REMOVED. FASTENER DIAMETER .161 SKIN REWORK DIAMETER .438. CRACKED REAR FUSE 2 LT SKIN AT FR 77 BETWEEN STR 3-4L REPAIRED. AT FRAME 77 AND BETWEEN STR 3L-4L METAL REPROTECTED.