As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) WHILE EN-ROUTE THE FLIGHT CREW EXPERIENCED AILERON CONTROL STIFFNESS & JAM. THE CREW DECLARED AN EMERGENCY AND LANDED WITHOUT FURTHER INCIDENT. THE AIRCRAFT TOOK OFF IN HEAVY RAIN AND STANDING WATER ON THE RUNWAY. LT AILERON CABLE SYSTEM WAS INSPECTED. THE LT AILERON MIXER ASSY. AND RT AILERON MIXER ASSY. WHERE FOUND TO HAVE SOME RESISTANCE IN THE ROTATING MOVEMENT SO BOTH ASSY WHERE REPLACED. AIRCRAFT WAS RETURNED TO SERVICE.