As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT WAS GROUNDED: EXIT DOOR 2R STICKY AND DIFFICULT TO ARM. MAINTENANCE CLEANED OFF DEBRIS BUILD-UP ON GIRT BAR SECURING MATING SURFACES AND LUBED CONTACT POINTS PER AMM 52-10-00. A SATISFACTORY OPERATIONAL CHECK OF THE DOOR ARMING SYSTEM WAS ACCOMPLISHED WITH NO ISSUES NOTED.