Which describes the emergency landing gear deployment sequence?

• A. Landing gear manual release T-handle; Uplock mechanically release; Bypass valve and weight lock MLG; Airflow and (2) tension springs lock NLG
• B. Hydraulic power extends gear; electric motor; nose gear first
• C. Manual release; gravity; power
• D. Automatic deployment by autopilot

Answer: (A)

Emergency deployment relies on unlocking the gear from its stowed position and letting gravity complete the drop with secure locking at the end. The manual release frees the uplocks, allowing the gear to begin to move down. For the main gear, a bypass valve and weight-related mechanism enable extension even if hydraulic pressure isn’t actively driving it, so the gear can descend and settle into the down-and-locked position. The nose gear then reaches full extension and is secured by the combination of airflow effects and the tension springs that provide the final lock. This sequence emphasizes a manual start, gravity-assisted deployment, and mechanical locking, which is why it best fits an emergency deployment scenario.