As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AUTO THROTTLE WILL NOT ARM ON TAXI OUT. FOUND C/B E1 POPPED. GROUNDED - YES. RESET C/B E1 (A/T DC1), PERFORMED A/T BITE PROCEDURE REF B737-800 FIM 22-31 801 FOUND FAULT MSG 22-31263 (A/T 28 VDC PWR INV) IN FLIGHT HISTORY, CURRENT STATUS SHOWS NO FAULTS, PER FIM 22-31 TASK 810 STEP (E)2 MSG 22-31263 IS INTERMITTENT 28 VDC POWER FAULT.