As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
MAIN CABIN DOOR HANDLE WOULD NOT MOVE MORE THAN APPROXIMATELY 1/4 OF THE WAY TO RELEASE DOOR. GND OPERATIONS AGENT HAD TO ASSIST FROM THE OUTSIDE TO OPEN DOOR. PERFORMED VISUAL INSPECTION OF MAIN CABIN DOOR LINKAGES, ALL CHECKS GOOD. CLEANED & LUBED ALL DOOR SHOOT BOLTS, ROLLER & CATCH ASSEMBLIES. PERFORMED MULTIPLE OPERATIONAL TESTS, ALL CHECKS GOOD IAW AMM CH 52-11-03.