Amber GPS Light Illumination Conditions in Aircraft

What triggers the amber GPS light to illuminate on the IRS overhead panel in aircraft?

a. Normal operation b. GPS system fault c. GPS signal interference d. During manual navigation

Answer:

The correct answer is b. GPS system fault.

When the amber GPS light on the IRS overhead panel in an aircraft illuminates, it indicates a potential issue with the GPS system. This light serves as a warning signal to the flight crew that there is a fault within the aircraft's GPS unit.

In normal operation, the amber GPS light should not be illuminated. However, if there is a malfunction or a loss of signal within the GPS system, the light will turn on to alert the crew of the problem.

It is essential for pilots to be aware of the meaning behind the illumination of the amber GPS light so that they can take appropriate actions to address the underlying issue and ensure the safety of the flight.