As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
R2 SERVICE DOOR ARMING LEVER WOULD NOT MOVE WHEN ATTEMPTING TO ARM DOOR. CHECKED RIGGING, AIRCRAFT WAS GROUNDED. LUBED AND ADJUSTED AFT RIGHT SERVICE DOOR EMERGENCY EVACUATION SLIDE MECHANISM IAW AMM 52-42-40-820. AFT RIGHT SERVICE DOOR OPERATES NORMAL.