As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
EMERGENCY LIGHTING: EMERGENCY LIGHTS FAIL THE PREFLIGHT TEST. NO EMERGENCY LIGHTS WORK WITH SWITCH IN THE ARM POSITION. ALL LIGHTS WORK WITH THE SWITCH IN THE ON POSITION. CREW RAN QRH PROCEDURE FOR ONE HOUR WITH NO CHANGE. CORRECTIVE ACTION; REPLACED THE #I EMERGENCY BATTERY PACK IAW CE700 AMM 33-50-07. OPS CHECKS GOOD.