What was found
YVR - MAJOR REPAIR - DURING C-16 CHECK A .5000 INCH CRACK WAS FOUND ON LT AND RT SIDE FRAMES, BS 178 BULKHEAD, WL 207. MAINTENANCE CUTOUT DAMAGED SECTION OF RT SIDE FRAMES, BS 178, WL 207; PERFORMED HFEC INSPECTION OF CUTOUT TO VERIFY NO CRACKS EXIST; FABRICATED A SPLICE FRAME, SPLICE ANGLES, AND SPLICE PLATES; INSTALLED REPAIR PARTS IAW E.R. 03-5312-03093-TB2. MAINTENANCE REMOVED LT SIDE CHORD; FABRICATED A NEW REPLACEMENT SIDE FRAME PER DWG 65-16300; INSTALLED REPAIR PART IAW B737-300 SRM 51-40-02, PG. 3 & 6.