As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DISCOVERED FAULT WHILE PERFORMING EEC BITE TEST: "MSG NBR: 73-20782, INTERVAL EEC FAULT. BSV POSITION SIGNALS DISAGREE FLIGHT LEG 1 AND 3 SET." LONG TIME FAULT. DEFERRED PER T/C 78273000. GROUNDED - YES. INTERROGATED FMC CDU FOR NO 2 ENG FAULT MSG 73-20782 AND FOUND THIS MESSAGE WAS NO LONGER ACTIVE AT THIS TIME. REF TECH SERVICES NOTE, REF L/P 12184603 ABOUT EEC REPLACEMENT CLEARING THIS FAULT.