As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
2R DOOR SLIDE ARM/DISARM LEVER IS DIFFICULT TO MOVE. F/A COMPLAINS IT STICKS WHEN MOVING TO ARMED POSITION. FOUND STICKING ON ARM/DISARM LEVER TO BE CAUSED BY DIRT BUILD UP. CLEANED AND LUBRICATED LEVER AS REQUIRED IAW EMB 170 MM 52-42-00.