As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
REF ASA T/C 78273000 ENG #1 SHOWS SHORT TIME FAULT 75-10451, THE VBV POSITION SIGNALS DISAGREE. GROUNDED - YES. ACCOMPLISHED GVI INSPECTION ON ELECTRICAL CONNECTORS DP0908(CH A), DP1008(CH B) AND VBV ACTUATOR RECEPTACLES, NO FAULT FOUND. PERFORMED ELECTRICAL RESISTANCE AND INSULATION CHECK ON BOTH ACTUATORS. ALL RESISTANCE VALUES ARE WITH IN ACCEPTABLE LIMITS. REF B737-900 FIM 75-32 TASK 803. REMOVED AND REPLACED RIGHT VBV ACTUATOR REF B737-900 AMM 75-32-02-000-801-F00. OPS CHECK GOOD.