As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
MCN - MAJOR REPAIR - C - DURING C-15 CHECK MAINTENANCE DISCOVERED FLOORBOARD SUPPORT ANGLE CORRODED AT BS 947 TO BS 987, RBL 55, WL 208.1. MAINTENANCE REMOVED CORROSION FROM FLOORBOARD SUPPORT ANGLE AND PERFORMED MATERIAL THICKNESS MEASUREMENT WITH LOSS OF MATERIAL OUT OF LIMITS IAW B737-300 SRM 53-60-13 PG 106-107. REMOVED CORRODED SUPPORT ANGLE AND FABRICATED NEW ANGLE AND FILLER, INSTALLED REPAIR IAW B737-300 SRM 51-70-11 PG 1-6.