What was found
LAX - CREW REPORTED WITH FLAPS AT 15 DEGRESS ALL NORMAL BUT WITH FLAPS SELECTED TO 20 DEGREES THE TRAILING EDGE FLAP DISAGREE ILLUMINATED. EMERGENCY DECLARED FLIGHT LANDED LAX WITHOUT INCIDENT. AIRCRAFT REMOVED FROM SERVICE. FOUND RIGHT WING INBOARD ROTARY ACTUATOR OVERLOAD INDICATOR TRIPPED. THE OVERLOAD TRIP INDICATOR WAS RESET AND THE FLAPS WERE RAN THROUGH ALL SETTINGS WITH NO FAULT INDICATIONS NOTED. SYSTEM GROUND CHECK NORMAL OPERATION.