As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
MCN - MAJOR REPAIR - DURING C-19 CHECK A .375 INCH CRACK WAS FOUND IN FORWARD EDGE OF AFT CARGO DOOR AT FASTENER HOLES FOR PULLEY BRACKET BS 801. MAINTENANCE CUT OUT DAMAGED SECTION OF FRAME ON FORWARD EDGE OF AFT CARGO DOOR; FABRICATED A NEW REPLACEMENT FRAME PER DWG 65C25180; INSTALLED REPAIR PART IAW B737-300 51-40-20.