What was found
KOSC - DURING C-2 CHECK INSPECTION FOUND: MAIN CARGO COMPARTMENT STA 1780 BL-ZERO UPPER CHORD OF FLOOR BEAM HAS EXFOLIATION. REPAIRED IAW B747 SRM 51-40-4 AND 51-50-2. CORROSION CARD NR C53-210-01, PART 4 OF 8. TASK CARD NR 76169.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
KOSC - DURING C-2 CHECK INSPECTION FOUND: MAIN CARGO COMPARTMENT STA 1780 BL-ZERO UPPER CHORD OF FLOOR BEAM HAS EXFOLIATION. REPAIRED IAW B747 SRM 51-40-4 AND 51-50-2. CORROSION CARD NR C53-210-01, PART 4 OF 8. TASK CARD NR 76169.