As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
START VALVE OPEN LIGHT FOR NR 1 ENGINE ILLUMINATED AFTER TAKEOFF. COMPLIED WITH POM PROCEDURES. START VALVE EXTINGUISHED AFTER APPROXIMATELY 3 MINUTES AT IDLE POWER AND BLEED VALVE CLOSED. NO SECONDARY INDICATIONS. ACCOMPLISHED PRECAUTIONARY SHUTDOWN FOR NR 1 ENGINE. REPLACED VALVE. ALSO REPLACED THE START VALVE PRESSURE SWITCH P/N 1G309, S/N 150.