As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
WHILE PERFORMING T/C 78273000 FOUND NR 1 ENGINE HAS "THE VSV POSITION SIGNAL IS OUT OF RANGE" LONG TIME FAULT 75-20391. GROUNDED - YES. PERFORMED EEC BITE IAW FIM 73-00 TASK 801. FOUND NO FAULTS. PERFORMED ACTUATORS TEST IAW AMM 71-00-00-700-807-F00. GROUND VERIFICATION GOOD AND NO FAULTS EXISTING.