As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING EMERGENCY LIGHT OPC FOUND EMERGENCY LIGHT FWD OF RH WING, SERVICE DOOR LIGHTING AND FLOOR EMERGENCY LIGHT STRIPS 1A-6A INOP.-C/A-TROUBLE SHOT. FOUND #2 EPSU INOP. REMOVED AND REPLACED #2 EMERGENCY LIGHT POWER SUPPLY AND CHARGER IAW ENVOY W/C 33-700-19. OPS CHECKS GOOD NO FURTHER DEFECTS NOTED. EMERGENCY LIGHTING BATTERY P/N 2013-1A S/N 109939