As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT WAS NOT GROUNDED: THE L1 DOOR WAS HARD TO ARM THE SLIDE, GOT IT TO ARM. BUT INFLIGHT THE SLIDE DISARMED ITSELF. MAINTENANCE LUBRICATED THE GIRT BAR / FITTINGS AND ACCOMPLISHED A SATISFACTORY OPERATIONAL CHECK PER AMM 52-73-00.