As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AFTER ENG NR2 WAS STARTED WE GOT AN ENGINE CONTROL LIGHT CAME ON. NR 2 EEC BITE SHOWED FAULT CODE 75-20582 TBV DEMAND AND SIGNAL DISAGREE. NO FAULTS ON CDS BITE. PERFORMED TEST 12 IAW MM 71-00-00-700-807. BOTH CHANNELS PASSED. NO FAULTS ON EEC. VERIFIED ELECT CONNECTORS AND FLUID LINE. (K)