As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
SHORTLY AFTER TAKEOFF, THE L1 DOOR SLIDE DID NOT INDICATE ARMED. AIRCRAFT WAS PRESSURIZING NORMALLY. MAINTENANCE CLEANED DEBRIS FROM L1 DOOR TRACK, CYCLED DOOR AND ARMING MECHANISM SEVERAL TIMES. ACCOMPLISHED SATISFACTORY OPERATIONAL CHECK.