As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
NR 2 ENGINE HAD SHORT TIME FAULT 75-30452 - THE VBV POSITION SIGNALS DISAGREE. ACFT GROUNDED. ACCOMPLISHED TROUBLESHOOTING IAW FIM 75-32 TASK 803. INITIAL EVALUATION AND FAULT ISOLATION FOUND NO DEFECTS. EEC TESTS INDICATED NO FAULTS. DUE TO EXTENSIVE HISTORY OF SINGLE AND DUAL CHANNEL FAULTS ON BOTH A AND B CHANNELS, REMOVED AND REPLACED EEC IAW AMM 73-21-00. OPS CHECK NORMAL.