As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DOOR 4R FLASHING WHEN DISARMING. DOOR SHOWS NEITHER A OR M. SHOWS BLANK. ESCAPE SLIDE RENDER SAFE CHECKLIST COMPLETED, ARMED AND DISARMED ESCAPE SLIDE ON DOOR 4R PER AMM DMC-B787-A-52-11-00-02A-110A-A. NORMAL OPERATION AND INDICATION, OK FOR SERVICE.