As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT WAS GROUNDED: L1 DOOR IS VERY DIFFICULT TO GET GUST LOCK TO ENGAGE. MAINTENANCE FOUND THE SLIDE COVER WAS HITTING THE FUSELAGE AND THE DOOR HARD TO LOCK AND UNLOCK DUE TO THE SLIDE BEING DEFECTIVE. MAINTENANCE REPLACED THE L1 DOOR SLIDE PER TASK CARD 26L00025011.