As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CABIN EMERG LIGHT: THE FOLLOWING EMERGENCY LIGHTS ARE INOP. EXIT SIGN OVER SEAT 7, PATH LIGHT IN LAV AND ALSO THE READING LIGHT IN LAV. THESE LIGHTS ARE INOP WITH EMER LIGHT SWITCH IN ARM AND SHIPS BATTERIES OFF. // SIGNOFF // :REMOVED AND REPLACED THE #4 EMERGENCY BATTERY PACK.REF CESSNA CE-680A AMM 33•50-06. OPS CHECK GOOD