As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AUTO THROTTLES DISENGAGED DURING DESCENT. RESELECTED A/T, GOT MASTER CAUTION A/T FAIL EICAS MESSAGE (AUTOTHROTTLE CHANNELS – BOTH INOPERATIVE). REMOVED FROM SERVICE.TROUBLESHOT PER E175 FIM 22-31-00-810-811-A. REMOVED AND REPLACED THRUST CONTROL QUADRANT ASSEMBLY IAW E175 AMM 76-11-01-000/400-801-A. FUNCTIONAL TEST OF THRUST REVERSERS GOOD. STILL REQUIRES OPS TEST OF TOGA SWITCH. PERFORMED OPS TEST OF TOGA SWITCH IAW AMM 22-11-00-710-801-A. OPS CHECKED GOOD. NO FURTHER DEFECTS NOTED. RETURNED TO SERVICE.