As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING ELECTRONIC ENGINE CONTROL TEST 73-21-700-800-F00, FOUND 3 MAINTENANCE MESSAGES. 73-10752, 75-10892 AND 73-20762. ACFT GROUNDED. FOUND PIN ON NR 2 ENGINE ID PLUG NOT SEATED. SEATED PIN IAW MM 73-21-61-800, ELECTRONIC ENGINE CONTROL TEST PASSED.