As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
EMERGENCY BATTERY W/C 18-3351-1-0003 FAILED. REQUIRES 13WL POWER SUPPLY AND BATTERY. REMOVED AND REPLACED 13WL EPSU AND BATTERY PER AMM 33-51-38, ALSO REPLACED BATTERY 11WL PER 33-51-38, OPS TEST OF ALL EMERGENCY LIGHTS TEST OK FROM THE FAP. VISUAL OF ALL EMERGENCY LIGHTS AS WELL ILLUMINATE.