What was found
CONTROL COLUMN VIBRATES AT BASE OF COLUMN WHEN RETURNING FROM FULL BACK POSITION TO NEUTRAL-CAPTAINS SIDE- IT FEEL LIKE SOMETHING IS RUBBING OR BINDING COLUMN MOVEMENT. REMOVED FROM SERVICE. C/W E175 FIM 27-33-00-810-801-A STEPS 1-6(L)(2) & MCN # E270006 ISSUE NO.1. CLEANED CAPT'S CONTROL COLUMN POSITION SENSORS IAW E175 AMM 12-22-02-100-801-A CAPTS CONTROL COLUMN POSITION SENSOR STILL MAKES SOME NOISE, THIS IS PERMITTED PER E175 FIM 27-33-00-810-801-A & MCN # E270006 ISSUE NO.1. NO BINDING OF CAPTS CONTROL COLUMN NOTED WHEN MOVED FWD OR AFT. C/W GVI OF ELEVATOR CONTROL TORQUE TUBE, NO DEFECT NOTED. NO PARTS REPLACED. AIRCRAFT RETURNED TO SERVICE.