As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
PIT - DURING Q2 CHECK, FOUND 2 FOOT BY 3 FOOT CORRODED AREA AT SUB-FLOOR AT STA 160 - STA 200 AND BETWEEN CENTERLINE OF AIRCRAFT AND RT INBOARD SEAT TRACK. CORROSION TASK NR C46-53303 CORROSION LEVEL 1. CUT OUT DAMAGED AREA AND INSTALLED DOUBLER PER SRM 53-01 FIG 2 SHT 3 PER SRM 53-01. (X)