As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ON PRE-FLIGHT, FOUND NR 2 ENGINE, BLUE ANNUNCIATOR ON OVERHEAD, ENGINE VALVE CLOSED EXTINGUISHES IMMEDIATELY ON NR 2 ENGINE CUTOFF LEVER BEING OPENED. NO TRANSIT OF VALVE INDICATION) ALSO THIS BLUE ANNUNCIATOR DOES NOT CORRECTLY PRESS TO TEST. ACFT GROUNDED. REPLACED NR 2 ENGINE HMU HPSOV SWITCH REF AMM 73-21-09-000-F00/400-801-F00. OP CHECK NORMAL.