What was found
(CAN) WHILE ON DESCENT WITH FLAPS AT 15 DEGREES, THE FLAP WARNING LIGHT CAME ON WITH A NOTICEABLE ROLL TENDENCY. EMERGENCY DECLARED AND LANDING OK. INSPECTION FOUND CORROSION ON THE RIGHT HAND, OUTBOARD FLAP ACTUATOR AND HARNESS. ALSO, CONNECTOR P/N MS3476.. PART TC: 7,938.