As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FORWARD CARGO COMPARTMENT LT BILGE FRAME CHAFED WITH TOOLING MARKS BS 500K. GROUNDED - YES. REPAIRED FUSELAGE FRAME, LOWER LOBE AT STA 500K , LBL 18.24 IAW EA 900-53EA-18365 REV 00. THIS IS A CATEGORY "B" REPAIR WITH FIRST AND SECOND STAGE APPROVAL WITH INSPECTION THRESHOLD OF 75,000 TOTAL FLIGHT CYCLES.