If the PRI SERVO 2 FAIL caution appears, which component is affected?

If the PRI SERVO 2 FAIL caution appears, which component is affected?

• A. HYD PUMP 2
• B. PRI SERVO 2
• C. SAS OFF
• D. TRIM FAIL

Answer: (B)

PRI SERVO 2 FAIL means the second primary servo, the actuator that amplifies and transfers pilot commands to the flight-control surface, has a fault. In the UH-60S, flight controls rely on two primary servo channels for redundancy. If the second one fails, you still have the first servo operating, but you’ll lose some capability on that axis and will see a caution until the situation is addressed. This is why the affected component is the second primary servo itself, not the hydraulic pump or other systems. The other cautions refer to different issues—the hydraulic pump 2 would indicate a pump problem, SAS off points to the stability augmentation system being disengaged, and a trim fail relates to the trim actuators.

PRI SERVO 2 FAIL means the second primary servo, the actuator that amplifies and transfers pilot commands to the flight-control surface, has a fault. In the UH-60S, flight controls rely on two primary servo channels for redundancy. If the second one fails, you still have the first servo operating, but you’ll lose some capability on that axis and will see a caution until the situation is addressed. This is why the affected component is the second primary servo itself, not the hydraulic pump or other systems. The other cautions refer to different issues—the hydraulic pump 2 would indicate a pump problem, SAS off points to the stability augmentation system being disengaged, and a trim fail relates to the trim actuators.