Which warning will illuminate on the EICAS page in the event of a loss of hydraulic pressure to either system or with a jammed rotor distributor valve on any of the main or tail flight control servos?

Which warning will illuminate on the EICAS page in the event of a loss of hydraulic pressure to either system or with a jammed rotor distributor valve on any of the main or tail flight control servos?

• A. SERVO JAM
• B. HYDRAULIC LOSS
• C. FUEL LOW
• D. MASTER WARN

Answer: (A)

The warning shown is specific to a fault in a hydraulic flight-control servo. If a rotor distributor valve in any main or tail servo jams, or there is loss of hydraulic pressure to that servo, the system flags a servo-level fault. That dedicated indication is SERVO JAM, which alerts you that one of the flight-control servos is jammed or not receiving hydraulic pressure, rather than a generic hydraulic system fault. HYDRAULIC LOSS would indicate a broader drop in hydraulic pressure affecting the system as a whole, not a specific servo fault. FUEL LOW is unrelated to hydraulic servo status, and MASTER WARN is a general alert that can accompany multiple faults but does not specify the servo issue. The key idea is that a jam in a rotor distributor valve on a servo creates a servo-specific fault, hence SERVO JAM.

The warning shown is specific to a fault in a hydraulic flight-control servo. If a rotor distributor valve in any main or tail servo jams, or there is loss of hydraulic pressure to that servo, the system flags a servo-level fault. That dedicated indication is SERVO JAM, which alerts you that one of the flight-control servos is jammed or not receiving hydraulic pressure, rather than a generic hydraulic system fault.

HYDRAULIC LOSS would indicate a broader drop in hydraulic pressure affecting the system as a whole, not a specific servo fault. FUEL LOW is unrelated to hydraulic servo status, and MASTER WARN is a general alert that can accompany multiple faults but does not specify the servo issue. The key idea is that a jam in a rotor distributor valve on a servo creates a servo-specific fault, hence SERVO JAM.