As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT WAS GROUNDED: DURING THE ACCOMPLISHMENT OF THE OPERATIONAL TEST OF EMERGENCY LIGHTING SYSTEM MULITPLE FAULTS OCCURRED. REPLACED THE R1 DOOR ESCAPE SLIDE PER TASK CARD 26L00025010 AND ACCOMPLISHED A SATISFACTORY OPERATIONAL CHECK.