As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING SCHEDULED A-CHECK MAINTENANCE, AN OPERATIONAL CHECK OF THE EMERGENCY EXIT LIGHT SYSTEM RESULTED IN FINDING OF INOPERATIVE LIGHT BULB AT THE UPPER DECK STAIRS POSITION. REMOVED AND REPLACED LAMP. OPS GOOD IAW AMM 33-51-00. OPS GOOD.