As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ON FLIGHT4222 CREW REPORTED DURING CLIMBOUT NOTICED A CLEAR FLUID LEAKING OUT OF THE RIGHT WING. CREW DECLARED AN EMERGENCY AND ELECTED TO RETURN TO THE FIELD. AIRCRAFT LANDED AND TAXIED TO THE GATE WITHOUT FURTHER INCIDENT. AIRCRAFT REMOVED FROM SERVICE. REMOVED AND REPLACED VENT VALVE, NO FURTHER DEFECTS NOTED. AIRCRAFT RETURNED TO SERVICE.