As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DOOR 1R WILL NOT ARM. SURVIVAL KIT RESTRAINT STRAP WAS DISPLACED FROM ITS CORRECT POSITION AT DOOR LINER AND INTERFERRED WITH GIRT BAR. IT IS POSSIBLE STRAP CAN BE DISLODGED FROM ITS VELCRO ATTACHMENT ON DOOR LINER. CORRECT POSITION OF STRAP IS CHECKED BEFORE EVERY FLIGHT BY FLIGHT ATTENDANT.