As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
BOTH THE EMERGENCY EXIT LIGHT NEAR THE CABIN DOOR AND THE GALLEY EMERGECY LIGHT ARE NOT STAYING BRIGHT FOR VERY LONG BEFORE DIMMING TO UNEXCEPTABLE LEVELS. EVEN AFTER A LONG FLIGHT. SUGGESTING THE BATTERY PACK IS GOING BAD. CORRECTIVE ACTION: REMOVED AND REPLACED #1 EMERGENCY BATTERY PACK. REMOVED P/N: CBS28-1 S/N:2889M. INSTALLED P/N: CBS28-1 S/N: 3193M. ALL WORK ACCOMPLISHED REF: CE-680 MM 33-50-10. OPS CHECKED GOOD