What was found
DURING SCHEDULED C-1 CHECK UNDER JOB CARD HC5321, FOUND THE CENTER FUSELAGE LT CHINE ANGLE WITH INCORRECT REPAIR AT FS 597-637 AND CORRODED AT FS 697-737, WL 141-146, LBL 61. REPAIR BY REPLACEMENT ACCOMPLISHED, IAW LOCKHEED SMP583 SRM CH 51-60 & 51-70. NR 2233.