The SAS DEGRADED advisory indicates that which condition has occurred?

The SAS DEGRADED advisory indicates that which condition has occurred?

• A. a pitch, roll, or yaw SAS channel has disengaged due to a fault
• B. SAS channel is healthy
• C. SAS is offline
• D. SAS is in test mode

Answer: (A)

DEGRADED means one SAS channel—either the pitch, roll, or yaw axis—has disengaged due to a fault. The UH-60S SAS uses multiple channels for redundancy, so when one channel drops out, the system enters a degraded mode rather than a complete failure. The remaining channels still provide stabilization, but with reduced authority and certainty on that axis. This differs from a healthy SAS (all channels functioning), SAS being completely offline (no stabilization available), or SAS in test mode (system is in a test state rather than normal operation).

DEGRADED means one SAS channel—either the pitch, roll, or yaw axis—has disengaged due to a fault. The UH-60S SAS uses multiple channels for redundancy, so when one channel drops out, the system enters a degraded mode rather than a complete failure. The remaining channels still provide stabilization, but with reduced authority and certainty on that axis. This differs from a healthy SAS (all channels functioning), SAS being completely offline (no stabilization available), or SAS in test mode (system is in a test state rather than normal operation).