As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT GROUNDED FOR CHECK-C24. IN COMPLIANCE OF TASK CARD ATI-53-572-00-01 "GVI - INTERNAL - BULK CARGO COMPARTMENT BULK FLOOR SUPPORT" F.S. 1417 HAS CORROSION ALONG LENGTH OF THE SUPPORT TOP SIDE. REMOVED AND INSTALLED "Z" BEAM IAW BOEING DWG 452T3260 REV E AND B767 SRM 51-40-05.