As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
WHILE AC WAS IN FOR HEAVY CHECK FOUND FWD FUSELAGE FLOOR STRUCTURE AT FR 12 AND LBL 36 ANGLE CRACKED. MX REMOVED AND REPLACED NEW ANGLE AT FWD FUSELAGE FLOOR STRUCTURE AT FR 12 AND LBL 36. PN 170-13238-001 IAW SRM 51-41-01. AC REMAINS IN YRQ FOR COMPLETION.