How many lights should you see with the Lamp Test?

• A. 9 lights starting from the top
• B. 12 lights
• C. 6 lights
• D. 15 lights

Answer: (A)

Lamp Test checks the annunciator lighting by turning on every indicator to verify the system works. On the PC-12 NGX, the annunciator panel has nine lights. When you run the Lamp Test, all nine lights should illuminate, starting from the top of the panel and lighting downward. This confirms each lamp, its wiring, and brightness are functioning. If fewer than nine lights come on, it signals a fault in a lamp or circuit. The numbers in the other options don’t match the nine-light panel and test pattern used here, so nine lights starting from the top is what you should expect.