As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ON ARRIVAL, THE L1 DOOR WAS OPENED FROM OUTSIDE. THE EPAS SYS ACTIVATED & THE DOOR OPENED SUDDENLY. THE SLIDE DROPPED ONTO THE JETWAY & DID NOT INFLATE. FOUND DISARM CABLE WAS DETACHED FROM OUTSIDE HANDLE DUE TO A RETAINER MISSING. INSTALLED NEW RETAINER ON L1 DOOR EXTERIOR HANDLE IAW AMM 52-11-02. ARMING DISARMING SYS OPERATIONS CHECKED OK. THE ACFT WAS GNDED. SEE ALSO SDR AALA20160222005.