As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING OP 16 MAINT CHECK, THE AFT FUSELAGE FRAME AT STA 1076 WAS CRACKED AT LOWER AFT CORNER OF THE LT HEAT EXCHANGER PORT. REPAIRED CRACK IN FRAME PER SRM 53-03 FIG 32 SHEET 4. SEALED PER SRM 51-20-0. INSTALLED FASTENERS PER SRM 51-30-5.