As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
MAIN DOOR: UNABLE TO FULLY ENGAGE THE LATCH TO LOCK THE MAIN CABIN DOOR FROM EITHER THE INSIDE OR THE OUTSIDE. REMOVED MED STEPS AND CLEANED AND LUBED ALL MOVING COMPENANTS AFTER WORKING LUBE IN THE LOCK LOSSENED UP AND IS MUCH EASIER TO LOCK. RE -INSTALLED STEPS IAW TEXTRON 560XL MM 52-10-02. MED WORKS AS REQUIRED NO DEFECTS NOTED AT THIS TIME.