What was found
AIRCRAFT WAS GROUNDED: WITH EMERGENCY LIGHTS SWITCH IN ARMED POSITION THE EMERGENCY EXIT LIGHTS IN THE CABIN KEEP FLICKERING ON AND OFF. MAINTENANCE REPLACED EMERGENCY POWER SUPPLY UNIT BATTERY AT L3 DOOR PER AMM 33-51-38.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
AIRCRAFT WAS GROUNDED: WITH EMERGENCY LIGHTS SWITCH IN ARMED POSITION THE EMERGENCY EXIT LIGHTS IN THE CABIN KEEP FLICKERING ON AND OFF. MAINTENANCE REPLACED EMERGENCY POWER SUPPLY UNIT BATTERY AT L3 DOOR PER AMM 33-51-38.