As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
INADVERTENTLY DEPLOYED TAIL CONE WHICH SHOULD HAVE ALSO CAUSED AFT EMERGENCY SLIDE TO DEPLOY. LANYARD VELCRO AND SNAP PULLED LOOSE FROM THE SLIDE COVER BUT THE SLIDE DID NOT DEPLOY. RETRIGGER SLIDE ASSEMBLY WITH NEW LANYARD. ENGINEERING INVESTIGATION HAS BEEN INITIATED TO DETERMINE PROBABLE CAUSE OF SLIDE FAILURE TO DEPLOY.