What was found
AIRCRAFT WAS GROUNDED: FORWARD CABIN DOOR IS HARD TO OPEN FROM OUTSIDE THE AIRCRAFT. MAINTENANCE PARTIAL WORK ACCOMPLISHED CHECKED REMOVED L1 DOOR FOR UPPER HINGE GUIDE ARM PLATE, GUIDE ARM AND ROLLER ASSEMBLY REPLACEMENT, AND REINSTALLED DOOR. ALL WORK ACCOMPLISHED PER AMM 52-11-00, AMM 52-11-21, AMM 52-11-51, AMM 52-11-41, AND AMM 52-11-31.