What is the purpose of a landing gear warning system?

• A. To lubricate gear components during flight.
• B. To alert the crew if gear is not down and locked during approach and landing.
• C. To automatically extend the gear in case of failure.
• D. To monitor tire pressure only.

Answer: (B)

The purpose of a landing gear warning system is to prevent a gear-up landing by making sure the crew is warned if the gear is not down and locked when the airplane is on approach or in the landing configuration. It monitors gear position sensors and the aircraft’s configuration (such as flaps and landing throttle/attitude) and, if the gears aren’t correctly extended and locked, emits an audible warning and a visual alert so the pilots can lower and lock the gear before touchdown. It isn’t about lubricating parts, automatically extending the gear, or monitoring tire pressure—that’s a different system.