As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
NO IGNITION ON #1 ENG. "ENG VALVE CLOSED" LIGHT EXTINGUISHED AND THEN ILLUMINATED AFTER THE START LEVER WAS RAISED TO IDLE. ABORTED START PER QRH. GROUNDED - YES. REMOVED AND REPLACED #1 ENG STARTER AIR VALVE. NO LEAKS NOTED OPS CHECK GOOD. REF B737-9 AMM 80-11-02.