As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING PREFLIGHT, FOUND L-1 DOOR AND COCKPIT ENTRY DOOR EMERGENCY BATTERY PACKS DRAINED TO DIM ILLUMINATION. REPLACED BATTERY PACKS (2 EA). OPERATED EMERGENCY LIGHT SYSTEM AND FOUND OPERATING NORMALLY. OK FOR SUBSEQUENT FLIGHT. AIRCRAFT WAS RETURNED TO SERVICE. (K)