What should the pilots assess regarding hydraulic systems before flight?

Before flight, pilots should assess the hydraulic systems, focusing on hydraulic pressure levels and checking for leaks. This is crucial because hydraulic systems are integral to the operation of various aircraft components, including brakes, flight controls, and landing gear. Ensuring that hydraulic pressure is within the normal operating range confirms that these systems will function correctly during flight. Additionally, checking for leaks is vital, as any loss of hydraulic fluid can lead to system failures or compromised safety.

In contrast, while weather forecasts and passenger comfort are important aspects of flight preparation, they do not pertain directly to the immediate operational readiness of the aircraft’s hydraulic systems. Similarly, fuel load accuracy is essential for flight planning but does not directly relate to the function and reliability of hydraulic systems. Thus, the correct focus before flight is on verifying the integrity and functionality of hydraulic parameters to ensure safe aircraft operation.