As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING PS2 EMERGENCY LIGHT OPERATIONAL TEST EMERGENCY LIGHTS DOOR 1L TURNED OFF AFTER 30SEC. ACCOMPLISHED TROUBLESHOOTING SSM 33-51-12 AND REPLACED POWER SUPPLY BATTERY M33093 LOCATED ABOVE 1L DOOR IAW AMM 33-51-06. CHECK OPERATIONAL OK AFTER MAINTENANCE PROCEDURE. THE AIRCRAFT WAS NOT GROUNDED.