As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
WO#: 97861 NR#: 100085 / COE / HEAVY CHECK / LEVEL 2 CORROSION / FLOOR BEAM 15 UPPER FLANGE HAS AREAS OF BARE METAL AND IS CORRODED BETWEEN LT AND RT INBOARD SEAT TRACKS. WILL REQUIRE REPAIR IN ACCORDANCE WITH ATR 72 STRUCTURAL REPAIR MANUAL.