As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
MCN - MAJOR REPAIR - DISCOVERED, DURING C16 CHECK, L1 DOOR CUTOUT SIDEWALL LINER SUPPORT ANGLE CRACKED AT BS 344, ST 14L. MAINTENANCE REMOVED THE DAMAGED AREA ON THE SUPPORT ANGLE FOR THE L1 DOOR CUTOUT SIDEWALL LINER IAW BOEING 737-300 SRM 51-70-11-0 FIG. 1. FABRICATED REPAIR ANGLE AND FILLER FOR L1 SIDEWALL LINER IAW BOEING 737-300 SRM 51-70-11-0. INSTALLED FABRICATED REPAIR PARTS IAW BOEING 737-300 SRM 51-70-11-0 FIG 1.