What was found
YVR - MAJOR REPAIR - DURING C-15 CHECK 4 EACH 1/2 INCH CRACKS WERE FOUND AT RIVET HOLES ON REAR PRESSURE BULKHEAD AT BS 1016, AFT OF STR 7 L/H. MAINTENANCE CUTOUT DAMAGED PORTION OF WEB ON REAR PRESSURE BULKHEAD AT BS 1016, AFT OF STR 7 L/H; FABRICATED A FILLER, DOUBLER, TRIPLER, AND TAPERED SHIM; INSTALLED REPAIR PARTS IAW B737-200 SRM 53-10-4, FIG. 15.