What was found
CRACK ON LT RING PAN FWD UPPER CORNER STA Y= 541-560 AT INTERNAL FUSELAGE STRUCTURE. FASTENERS AND DAMAGE WERE REMOVED REPAIR PARTS WERE FABRICATED, TREATED/PAINTED, NDT CHECKED, AND WERE INSTALLED IAW SRM 51-10-3, PAR 21,14, 53-05, FIG 122, 51-30-5,51-30-2 ERA 493648-14MA, REV ORIG.