As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
MKE - FLIGHT 2350, THE CREW REPORTED FLUID LEAKING FROM THE TOP OF THE RIGHT AILERON RIGHT AFTER TAKEOFF. THE AIRCRAFT RETURNED TO MKE WHERE IT LANDED WITHOUT INCIDENT. MAINTENANCE REMOVED AND REPLACED THE RIGHT WING OUTBOARD FLAPPER VALVE, AND THE AIRCRAFT WAS APPROVED FOR RETURN TO SERVICE.