As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AUTOTHROTTLES WILL NOT REMAIN ENGAGED. WILL ENGAGE BRIEFLY THEN DISENGAGE. THIS OCCURS WITH FCC MASTER SWITCH ON EITHER SIDE CAPT OR F/O. C/B P18 E1 REMAINS IN. FAULT CODE 223 130 00. PERFORMED A/T CURRENT STATUS NO FAULTS. A/T INTERACTIVE TESTS NO FAULTS AND EEC TEST FOUND NO FAULTS. PERFORMED A/T SYSTEM OPS CK REF M/M 22 31 00. GROUND VERIFICATION GOOD. SEAMC NOTIFIED.