What was found
DIFFICULT TO OPEN / CLOSE THE MAIN CABIN DOOR FROM OUTSIDE OF ACFT. REQUIRES BOTH HANDS & ESTIMATED 40 PLUS POUNDS OF FORCE TO MOVE DOOR HANDLE DOWN. UPPER 4 GUIDE ROLLERS APPEAR TO BE HAVE ACCESS WEAR. PERFORMED ADJUST OF MED UPPER & LOWER LATCH ROLLERS IAW AMM 52-10-00. PERFORMED OPS CHECK OF MED IAW 52-10-00. CHECK GOOD. DOOR OPERATES NORMALLY. PERFORMED OPS CHECK OF STEP LIGHTS. CHECK GOOD. PERFORMED FINAL OPS CHECK OF CABIN DOOR. CABIN DOOR DIFFICULT TO OPEN ONCE AGAIN. PERFORMED ADJUSTMENTS OF UPPER & LOWER LATCH ROLLERS. AFTER FINAL ADJUSTMENTS, PERFORMED OPS CHECKS OF CABIN DOOR. OPS CHECK GOOD AT ALL TIMES. NO FURTHER DEFECTS NOTED.