As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
INSPECTION TYPE: D, DURING EO, ACCOMPLISHED LT BS 520 STRAP AND EXISTING FLOORBEAM FOUND AT OTBD AREA 2EA HOLES AREA LESS THAN DWG SHOWN ONE EXISTING HOLE IS ALREADY OVERSIZED TO 0.0250" DIA. REPAIRED IAW RI-53-15-10220, REV A & B747-5310-51295-A. CLASSIFIED MINOR REPAIR.