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 # 73-30652, "THE BSV POSITION SIGNALS DISAGREE". GROUNDED - YES. REMOVED & REPLACED J9 HARNESS, REF B737-800 AMM 73-21-06-000-802-F00, PERFORMED FADEC SYSTEM TEST GOOD AMM 73-21-00-700-802-F00.