Power for the landing gear controls is provided through a circuit breaker placarded LDG GR CONT, located on the ____________________.

• A. Battery bus circuit breaker panel in the front cockpit only
• B. Battery bus circuit breaker panels in the front and rear cockpit
• C. Generator bus circuit breaker panels in the front and rear cockpit
• D. Generator bus circuit breaker panel in the front cockpit only

Answer: (D)

Landing gear controls are powered through the generator bus, so they operate only when the generator is supplying power. The circuit breaker for the LDG GR CONT is placed on the generator bus panel in the front cockpit because that’s the primary control station and the power feed for this function. In many dual-control aircraft, critical control circuits are wired to the front cockpit’s generator bus to ensure proper power and to keep control of the system centralized there. Placing it on the front cockpit generator bus prevents rear-seat operation from energizing or interrupting the gear circuit and aligns with using generator power rather than the battery for this control.