As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
NR 1 ENGINE, COWL VALVE OPEN, LIGHT IS ILLUMINATED BRIGHT BLUE IN FLIGHT WHEN SWITCH IS IN THE OFF POSITION. ACFT GROUNDED. DUE TO EVIDENCE OF FAILED NR 1 ENGINE TAI VALVE SOLENOID. REMOVED OLD NR 1 ENGINE TAI VALVE ASSEMBLY AND INSTALLED NEW. VALVE CHANGE, REF AMM 30-21-11. ENGINE RUN ACCOMPLISHED, OPS CHECK GOOD.