As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT WAS NOT GROUNDED: R1 DOOR FLASHING RED LIGHT IN FLIGHT. IN FLIGHT R1 SLIDE SHOWED DISARMED AND THEN SHOWED ARMED AGAIN WITH THE READ LIGHT GOING OUT. ACCOMPLISHED INSPECTION OF R1 DOOR. FOUND DEBRIS IN GIRT BAR LATCH. CLEANED OBSTRUCTION AND LUBRICATED.