As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CCS GATE, L4 DOOR INADVERTANTLY OPENED IN THE ARMED POSITION. SLIDE DID NOT INFLATE AS CREW MEMBER REACTED AND HELD DOOR TOWARDS THE CLOSED POSITION. THE SLIDE DID SEPARATE FROM THE DOOR. POWER ASSIST BOTTLE DISCHARGED. MAINTENANCE REINSTALLED L4 DOOR SLIDE IAW MM. OPS CHECK OF SYSTEM NORMAL. REMOVED AND REPLACED POWER ASSIST BOTTLE.