As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING ACCOMPLISHMENT OF T/C 78273000 #1 ENGINE HAS A SHORT TIME FAULT MSG 73-21281 EEC CHANNEL IS NOT ENERGIZED WITH THE ALTERNATOR VOLTAGE. GROUNDED - YES. UPON RECHECK OF T/C 78273000 - FOUND NO #1 ENGINE RECENT FAULTS AND FAULT HISTORY SHOWED DEFERRED FAULT ONLY ON FLT 7 OF 10 FLTS. PERFORMED B737-800 FIM 73-27 TASK 805 REPAIR CONFIRMATION TEST 13 - ENGINE RUN - EEC BITE CHECK 71-00-00-700-808-F00. NO RECENT FAULTS LOGGED W/ENGINE RUN.