The detent on the landing gear selector handle serves what purpose?

• A. Prevents the gear from being raised accidentally
• B. Prevents the slide valve assembly from hammering
• C. Activates the red light in the handle
• D. Prevents activation of the emergency gear selector

Answer: (C)

A detent is a positive stop that gives a definite, tactile position for the landing gear selector handle. When the handle reaches its detent, it aligns with an internal switch that can energize the red warning light in the handle. That light provides a clear visual cue to the crew if the gear isn’t in the down and locked position, helping prevent misreads or inadvertent gear status. The detent’s main job is to secure deliberate positioning and feed the warning indicator, rather than simply mechanically preventing gear from being raised or preventing an emergency selector from being used.