As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLIGHT 3983 OUT OF LGA, HAD TO RETURN TO FIELD, REPORTING THE GEAR DID NOT COME UP WHEN SELECTED UP. AIRCRAFT WAS FERRIED TO MIDDLETOWN FOR REPAIRS. MAINTENANCE TROUBLESHOT SYSTEM AND FOUND THE LANDING GEAR SELCTOR VALVE INTERMITTENT. VALVE WAS REMOVED AND REPLACED. SYSTEM OPERATIONAL CHECKED. ALL CHECKS GOOD. AIRCRAFT RETURNED TO SERVICE.