As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
WHILE THE ACFT WAS IN HEAVY CHECK MAINT FOUND FRAME 17 CROSSBEAM IS CORRODED. REMOVED CORROSION AT CROSSBEAM FR17 USING CUT-OUT REPAIR. REPAIR L ANGLE AND FILLER REF SRM 53-00-10 REPAIR 03. APPLIED SURFACE PROTECTION REF. SRM 51-23-06. ACFT REMAINS IN HEAVY CHECK UNTIL COMPLETION.