Retraction of the landing gear will only take place if _______ and all oleo struts are fully extended.

• A. AFCS pitch and roll are engaged
• B. the nosewheel is centered
• C. the radar caution light is extinguished
• D. gear handle is up

Answer: (B)

Gear retraction is controlled by an interlock that depends on the gear’s position and alignment. The nosewheel must be centered to ensure the nose gear and door mechanisms line up correctly so the gear can retract without fouling the doors or the bay. At the same time, all oleo struts being fully extended confirms the gear is in the down, locked configuration and that the hydraulic path and mechanical geometry are correct for the retraction sequence. If the nosewheel isn’t centered or the oleos aren’t fully extended, attempting to retract could cause interference or binding and potentially damage the gear system. The other factors listed don’t govern whether retraction can occur; they don’t affect the mechanical clearance and alignment required for a safe retraction.