The normal indication that the gear and doors are fully retracted is which of the following?

• A. No lights illuminated
• B. Three green lights
• C. Three green lights and no red lights
• D. Only the main gear door lights are illuminated

Answer: (A)

Indicator lights for landing gear show position: green means the gear is down and locked, red signals an unsafe or not-locked condition, and no lights usually means the system is in its retracted, stowed state with doors closed. So when the gear and doors are fully retracted, there are no illuminated lights. The other possibilities would indicate the gear is down and locked (three greens), or that some door light is active, which would mean the gear isn’t fully retracted.