As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
THE MAIN CABIN HANDLE REQUIRES EXCESSIVE FORCE TO OPEN AND CLOSE. TROUBLESHOT MED TO DIRTY AND DRY INNER AND OUTER DOOR HANDLE ASSEMBLIES. SET UP SUPPUES. CLEANED WITH ISOPROPYL BOTH ASSEMBLES. LUBED AS REQUIRED. VISUAL AND OPERATIONAL TESTS SATISFACTORY. ALL WORK IAW MM:12-20-52, 52-10-00