As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT WAS GROUNDED. ACCOMPLISHING EMERGENCY LIGHT SYSTEM OPERATIONAL CHECK FOUND LEFT HAND EXIT IDENTIFIER LIGHT AND SLIDE LIGHT INOPERATIVE AT DOOR 3L. REMOVED AND REPLACED EMERGENCY POWER SUPPLY M33405 OVER DOOR. CHECKED BOTH LIGHTS WORKING OK NOW.