What was found
THE MAIN CABIN DOOR IS VERY DIFFICULT TO OPEN OR CLOSE. WHEN CLOSING, IT TAKES SEVERAL ATTEMPTS BEFORE THE LIGHT WILL EXTINGUISH AND WHEN OPENING THIS LAST TIME IT TOOK A LOT OF FORCE TO LIFT THE HANDLE FROM INSIDE THE CABIN. MAIN CABIN DOOR HANDLES WERE CLEANED, TESTED, AND OPERATED SEVERAL TIMES FROM BOTH THE OUTSIDE AND INSIDE. NO DEFECTS WERE NOTED AT THE TIME OF INSPECTION, IAW AMM 52-10-00.