As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING ACCOMPLISHMENT OF ASA T/C# 78273000 FOUND #2 ENGINE WITH SHORT TIME FAULT FAULT MSG 75-30452 " THE VBV POSITION SIGNALS DISAGREE". GROUNDED - YES. PERFORMED B737-900 FIM 75-32 TASK 803 PARA. 5. ALL RESISTANCE VALUES WITHIN SPECIFIED RANGE. REMOVED VBV ACTUATOR REF B737-900 AMM TASK 75-32-02-000-802-F00. AFT BOLT OF ACTUATOR ROD CLEVIS SEIZED, REMOVED FWD INSTEAD. ACCOMPLISHED VBV INSTALL REF AMM 75-32-02-400-802-F00. LEAK & OPS CHECK GOOD. NO CURRENT FAULTS.