As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ENGINE SHUTDOWN: IN CRUISE NR 3 ENGINE START VALVE OPEN LIGHT ILLUMINATED AT THE SAME TIME THE RT DUCT OVERHEAT LIGHT CAME ON. ACCOMPLISHED ASSOCIATED EMERGENCY PROCEDURE IAW AOM. LIGHTS STAYED ON UNTIL ENGINE SHUTDOWN ON THE GROUND. REMOVED AND REPLACED NR 3 ENGINE START VALVE LIGHT PRESSURE SWITCH OPS CHECKED GOOD IAW MM. FOUND DUCT AIR TEMP INDICATOR OPS CHECKED OK IAW MM.