As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AT FAULT MESSAGE ( AUTOTHROTTLE DISCONNECT BUTTONS – ONE INOPERATIVE ). REMOVED FROM SERVICE. R&R THRUST CONTROL QUADRANT IAW E175 AMM 76-11-01-000/400-801-A. OP. CHECKS GOOD. C/W OP. TEST OF THE AUTO THROTTLE/ THRUST CONTROL QUADRANT INTERFACE IAW E175 AMM 22-31-00-710-801-A. OP. TEST GOOD. A/C REMAINS CAT III QUALIFIED. PLACARD READS CAT III. MC NOTIFIED. CLEARS MEL. PLACARDS REMOVED. AIRCRAFT RETURNED TO SERVICE.