As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AUTOTHROTTLE INITIAL WOULD NOT REMAIN ARMED THEN ONCE ARMED IMMEDIATELY WENT TO A/T LIMIT. ACFT GROUNDED. PERFORMED FIM 22-32 TASK 815, DISCRETE STATUS PASSED. A/T BITE SHOWS INTERMITTENT LOST OF EEC NR 1 DATA. BITE BOTH EEC, NO RECENT FAULT. A/T TEST PASSED, NO HISTORY PAST 60 DAYS.