As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLT 658 - DEN - AIR TURN BACK, UPON CLIMB-OUT FROM DEN, FLIGHT CREW REPORTED NR 1 ENGINE START VALVE 'OPEN' LIGHT ILLUMINATED. NR 1 ENGINE WAS SHUT DOWN AND AIRCRAFT RETURNED TO DEN WITHOUT INCIDENT. MAINTENANCE REPLACED NR 1 ENGINE START VALVE SOLENOID AND CHECKED OK. (M)