As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
TUL - FOUND HEAVY CORROSION ON BOTTOM OF FLOOR PAN (CABIN) 6 INCHES FORWARD OF BS 1183 LBL 26, EXTENDING 6 INCHES FORWARD AND 6 INCHES OUTBOARD, GOING OVER TOP OF FITTING AT LBL 27. FABRICATED AND INSTALLED REPAIR DOUBLER ON LEFT AFT LAV FLOOR PAN IAW SRM 51-40-2 FIG 1. (M)