As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLIGHT CREW REPORTED A BLEED 1 VALVE CLOSED MESSAGE SHORTLY AFTER TAKEOFF AND RETURNED TO LGA AND LANDED WITHOUT INCIDENT. MAINTENANCE REPLACED THE NR 1 BLEED PUSH BUTTON AND THE E1 FAN AIR VALVE FILTER AS A PRECAUTION, WITH NO FURTHER DEFECTS BEING NOTED DURING ENGINE RUNS AND OPS CHECKS.