As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT WAS GROUNDED: AT DEPARTURE THE FLIGHT ATTENDANT ACCIDENTLY ARMED THE 1L DOOR AND STARTED TO OPEN THE DOOR THEN REALIZED THAT THE DOOR WAS ARMED INSTEAD OF BEING DISARMED AND THE SLIDE DROPPED OUT OF ITS COVER BUT DID NOT FULLY DEPLOY. MAINTENANCE REPLACED THE SLIDE PER TASK CARD 26L00025010.