As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
WHILE ACFT IN HEAVY CHECK MAINT FOUND CORROSION ON RH UPPERSHEET FRAME 85-86 AFT WET AREA, REMOVED RH UPPERSHEET FRAME 85-86 AFT WET AREA. REF SRM 51-40-08.INSTALLED NEW RH UPPERSHEET FRAME 85-86 AFT WET AREA. REF SRM 51-40-08,RESTORED SURFACE PROTECTANT TO BOTTOM SIDE OF RH UPPERSHEET FASTENERS. REF SRM51-23-06. ACFT REMAINS IN HEAVY CHECK UNTIL COMPLETION.