As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
EMERG EXIT SIGN/LIGHT: EXIT LIGHTS ABOVE MAIN ENTRY DOOR AND ON EITHER SIDE OF MAIN ENTRY DOOR DO NOT ILLUMINATE WITH EMER LTS SWITCH ON AND BATT SWITCH OFF. WITH BATT SWITCH ON THEY WILL ILLUMINATE. REMOVED FORWARD EMERGENCY LIGHT BATTERY PACK DUE TO LOW VOLTAGE OUTPUT. INSTALLED TESTED BATTERY PACK. CHARGED BATTERY PACK, OPS CHECKED GOOD. ALL WORK ACCOMPLISHED JAW CESSNA 560 XL MM CH 33-50-01.