What was found
FUSELAGE EXTERNAL SKIN REPAIR AT STA 540-550, STR-27L REQUIRES REPLACEMENT DUE TO NOT COMPLYING WITH KNOWN APPROVED DATA. R & R DOUBLER & FILLER STA 540-550 STR -27L IAW SRM 51-40-02 /SRM 53-00-01, FIG 201, TABLE I - III, REPAIR 15, W/ DOUBLER PN 2024-T3-071, BATCH 1941519. FILLER PN 2024T3, .051 & BATCH 1965845. HFEC CUTOUT IAW NTM 51-00-19. HFEC HOLES IAW NTM 51-00-16, CATEGORY B (REPAIR 15) LEFC METHOD OF INSP IAW NDT 53-00-06 WITH INITIAL AT; F/C 29,000 INTERVALS EVERY 3,000 F/C. MAJOR REPAIR CAT B.