As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DOOR 4L ARM LIGHT EXTINGUSHED ON TAXI OUT. DOOR 4 LEFT ARM AND DISARME DGIRT BAR SLIDERS INDICATED WHEN LEVER SET TO ARM AND DISARM. DOOR SLIDE LIGHT INCONSITENT COMPLIED WITH MEL PROCEDURES. 2566N APPROVED COMPLIED WITH MEL. VERIFIED ARM LIGHT OPERATES NORMALLY WHEN SLIDE ARMED NO DEFECTS NOTED AT THIS TIME.