As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
WHILE ACCOMPLISHING T/C 78273000, FOUND FAULTS 73-21351 AND 73-31351, APL VOLTAGE INPUT TO THE EEC IS OUT OF RANGE, NO GO. ACFT GROUNDED. EEC BITE SHOWS FAULT LOGGED ON LEG 0, IAW AMM 73-21-00. ACCOMPLISHED EEC TEST, NO FAULTS FOUND IAW AMM 73-21-00-804-F00. SUSPECT FAULT DUE TO MOMENTARY POWER LOSS DUE TO A NOTHER FAULT LOGGED ON SAME LEG. NO OTHER INSTANCES OF THIS FAULT IN HISTORY IAW FIM 73-22 TASK 808.