As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ATTACHEMENT FLANGE SHEARED OFF - ON TAXI, PILOT DISCOVERED AIRPLANE WOULD ONLY TURN RIGHT. AIRCRAFT HAS CASTERING NOSEWHEEL AND USES BRAKES TO STEER. AFTER SHUTDOWN, LH BRAKE DISC/ROTOR FOUND COMPLETELY SHEARED OFF AT 90 DEGREE BEND WHERE THE BODY TRANSITIONS TO THE WHEEL ATTACHMENT FLANGE. SIGNS OF HEAVY CORROSION AT FLANGE BEND THAT RESULTED IN CIRCUMFERENTIAL CRACK. DISC WAS INSTALLED 02/03/2023 AND WAS IN SERVICE 2 YEARS AND 2 MONTHS.