During annunciator light check via the GTC, how many lights are seen between the engine start switches?

During annunciator light check via the GTC, how many lights are seen between the engine start switches?

• A. 4 lights
• B. 1 light
• C. 2 lights
• D. 6 lights

Answer: (A)

During this check you’re confirming the annunciator lighting circuit works properly. The strip of annunciator lights between the engine start switches on the Citation Longitude comprises four individual indicators. When you run the annunciator light test on the Ground Test Console, all four lamps illuminate to verify that the bulbs, wiring, and power to that panel are functioning. So, the expected result is four lights showing. If you don’t see all four, there’s a fault in the annunciator circuit, a bulb, or a power supply to that panel.

During this check you’re confirming the annunciator lighting circuit works properly. The strip of annunciator lights between the engine start switches on the Citation Longitude comprises four individual indicators. When you run the annunciator light test on the Ground Test Console, all four lamps illuminate to verify that the bulbs, wiring, and power to that panel are functioning. So, the expected result is four lights showing. If you don’t see all four, there’s a fault in the annunciator circuit, a bulb, or a power supply to that panel.