As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
INT - DURING Q-4 CHECK VISUAL INSPECTION, FOUND 1 INCH TO 2 INCH DIAMETER SPOTS OF CORROSION AT SCREW HOLES BS 987 LEFT SIDE TO RIGHT SIDE OF CABIN TOP OF FLOOR BEAM. CUT OFF TOP CHORD OF FLOOR BEAM AND INSTALLED T-CAP REPAIR. REPAIRED PER EA 4116. (M)