As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
WHILE ACCOMPLISHING T/C 78273000, FOUND A SHORT TIME FAULT ON THE #2 ENG, FAULT # 75-10452 "THE VBV POSITION SIGNALS DISAGREE". GROUNDED - YES. PERFORMED B737-800 FIM 75-32 TASK 803 NO FAULTS PRESENT AND APPEARS TO BE A ONE TIME FAULT, SYSTEM OP CHECKS GOOD.