If a cockpit warning indicates hydraulic pressure loss, what is the proper response?

If a cockpit warning indicates hydraulic pressure loss, what is the proper response?

• A. Ignore warning and continue flight.
• B. Immediately shut down hydraulics and descend.
• C. Maintain altitude and check alternate system's status before landing.
• D. Follow hydraulic failure procedures, reduce collective, maintain flight with alternate system if available, and land as required.

Answer: (D)

When hydraulic pressure is lost, your first priority is to keep the helicopter controllable by using the available means and then get on the ground safely. The warning means the primary flight controls—cyclic, collective, and pedals—may not have full hydraulic assistance, so you follow the hydraulic failure procedures: use the alternate hydraulic system if it’s available to preserve control, and manage the flight with that system. Reducing the collective helps by lowering the rotor load and hydraulic demand, which improves your ability to maintain control and keep the rotor rpm in a safe band. With the aircraft stabilized on the alternate system, plan and execute a landing as soon as practical to address the failure. Ignoring the warning or descending without a plan risks losing control; attempting to shut down hydraulics immediately isn’t the proper first step when an alternate system can maintain some control.

When hydraulic pressure is lost, your first priority is to keep the helicopter controllable by using the available means and then get on the ground safely. The warning means the primary flight controls—cyclic, collective, and pedals—may not have full hydraulic assistance, so you follow the hydraulic failure procedures: use the alternate hydraulic system if it’s available to preserve control, and manage the flight with that system. Reducing the collective helps by lowering the rotor load and hydraulic demand, which improves your ability to maintain control and keep the rotor rpm in a safe band. With the aircraft stabilized on the alternate system, plan and execute a landing as soon as practical to address the failure. Ignoring the warning or descending without a plan risks losing control; attempting to shut down hydraulics immediately isn’t the proper first step when an alternate system can maintain some control.