What was found
DURING C-CHECK, MAINTENANCE REPORTS EMERGENCY LIGHTS IN FWD ENTRANCE AND COCKPIT WENT OUT 5 MINUTES INTO THE 10 MINUTE BURN TEST. REPLACED BATTERIES IN TWO FWD BATTERY PACKS. RETURNED AIRCRAFT TO SERVICE.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
DURING C-CHECK, MAINTENANCE REPORTS EMERGENCY LIGHTS IN FWD ENTRANCE AND COCKPIT WENT OUT 5 MINUTES INTO THE 10 MINUTE BURN TEST. REPLACED BATTERIES IN TWO FWD BATTERY PACKS. RETURNED AIRCRAFT TO SERVICE.