As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CORROSION FOUND AT FRAME STATION 559 ON FLOOR INTERCOSTAL CROSS MEMBER BETWEEN R/H O/B SEAT TRACK AND FLOOR SILL APPROX. RBL 27+ (C-CHECK RO 5/23/2023) REPARED PER BOMBARDIER REO 601R-53-41-3157 REV -- DATE 2023-04-24, AND BOMBARDIER DWG 601R31025 REV N COMPLIED WITH ALL STEPS OF 51-900-1003-SKY PRESSURIZATION/LEAK CHECK GOOD.