As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
EMERGENCY LIGHTING: DURING POWER ON CHECKLIST, EMERGENCY LIGHT AT SEAT NUMBER ONE WILL NOT ILLUMINATE. REMOVED BATTERY PACK P/N BES360000-00 S/N 22270, REPLACED WITH CUSTOMER SUPPLIED NEW BATTERY PACK P/N BES360000-00 S/N 25613. SECURED IN PLACE. COMPLIED WITH POST MAINTENANCE CHECKS. NO DEFECTS TO BE NOTED. FINAL CHECK GOOD. AIRCRAFT RETURNED TO ORIGINAL CONFIGURATION. ALL WORK DONE I/A/W GL7500 AMP 33-53-11, 33-53-01