Nav and Strobe amber fault light
Steady – One LED failed
Flashing – Multiple LED failed
Exterior lights and Nav button switch turn Amber
number of Nav Light LEDS
Landing Lights and Pulse in Auto go OFF
Climb > FL180
* Pulse have priority > FL180
Landing Lights and Pulse in Auto go ON
Descend < FL180
* Pulse have priority > FL180
* Landing have priority < FL180
Emergency Evacuation Lights
External ?