As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING TAKEOFF AND IMMEDIATELY AFTER LIFT-OFF, THE RT OVERWING EMERGENCY SLIDE DOOR OPENED AND SLIDE FELL FROM AIRCRAFT. UPON RETURN, INVESTIGATION DISCOVERED THAT THE RELEASE LATCH HAD MALFUNCTION AND RELEASE DOOR LATCHES. SQUIB FIRING IS NOT INDICATED AND SLIDE DID NOT INFLATE.