As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CABIN SERVICES PERSONNEL OPENED LT NR 4 DOOR AND PARTIALLY DEPLOYED SLIDE FROM INSIDE AIRCRAFT. DOOR ASSIST BOTTLE DISCHARGED. SLIDE DEPLOYED BUT DID NOT INFLATE. REPLACED SLIDE AND DOOR ASSIST BOTTLE. SYSTEM GROUND CHECKED NORMAL OPERATION.