As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT WAS NOT GROUNDED: AFT LEFT DOOR, LONG STRAP HANGING DOWN OFF THE BOTTOM WHILE DOORWAS OPEN FOR CATERING. THEY CLOSED DOOR BEFORE WE COULD GET THEIR ATTENTION, NOW STRAP IS STICKING OUT OF BOTTOM DOOR SEAL. SECURED LEFT AFT DOOR SLIDE STRAP