What was found
INTERNAL AND EXTERNAL EMR LIGHTS WILL NOT ILUMINATE WITH THE SWITCH IN THE ARM POSITION AND BATTERIES OFF. OPS CHECK OF EMERGENCY LIGHTING ADJUSTMENT/TEST IS GOOD AT THIS TIME. REVIEWED FLIGHT MANUAL CHECK AND AIRCRAFT CONFIGURATIONS. SPOKE WITH CESSNA TECH SUPPORT AND VERIFIED EMERGENCY LIGHTS OPERATION WITH SWITCH IN THE ARM POSITION WITH BATTERIES UNPLUGGED. SYSTEM CHECKS NORMAL. PLACED RELAY KF125 ON ORDER WITH MCC. REMOVED CO PILOTS SEAT AND COCKPIT SIDE PANEL. REMOVED RELAY KF125 PN M83536/15-022L AND INSTALLED A NEW RELAY KF125 PN M83536/15-022L. OPS CHECKS GOOD AT THIS TIME. WORK IAW CE700 MM 24-60-45. INSTALLED A REPAIRED BATTERY UNIT PN CBS28-1 SN 006146.