What was found
T/O MODE INDICATION & SETTINGS WOULD NOT DISENGAGE AFTER T/O. T/O CROSSBARS FAILED TO CHANGE TO FD AT ACCEL HT. AT DISENGAGED BY PILOT & TLA NOT TOGA MESSAGE RECEIVED. RETURNED TO FIELD. LANDING UNEVENTFUL. REMOVED FROM SERVICE. C/W A/C PWR DOWN. PERFORMED GVI OF C/B'S. RETURNED PWR TO A/C. PERFORMED FMC OPS TEST IAW E175 AMM 34-61-00-710-801-A. OPS CHECKS GOOD. A/C REMAINS CAT III, PLACARD READS CAT III, M/C NOTIFIED. A/C OK FOR SERVICE. RETURNED TO SERVICE.