As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CAPTAIN'S TCS BUTTON STUCK. RETURNED TO THE FIELD, LANDING UNEVENTFUL. R & R CAPTAIN'S TCS SWITCH AND A/P FUNCT TEST GOOD IAW TASK 22-11-00-720-801. ACFT REMAINS CAT III. PLACARD CAT III. ALL CHECKS GOOD IAW MX 6221101. RETURNED TO SERVICE.