Moving the SERVO OFF switch from NORM to 1st STG or 2nd STG will?

Moving the SERVO OFF switch from NORM to 1st STG or 2nd STG will?

• A. Turn off that stage (1st or 2nd) of the 3 primary servos
• B. Turn off all hydraulics
• C. Disable autopilot
• D. Switch to alternate control mode

Answer: (A)

The SERVO OFF control isolates hydraulic power to a specific stage of the three primary flight-control servos. Moving it from normal to the first stage shuts off the first stage across the three primary servos, and moving it to the second stage shuts off the second stage. This leaves the other stage(s) still providing some hydraulic assist, so you don’t lose all control authority—you're simply removing that particular stage’s contribution for testing, maintenance, or abnormal conditions. It doesn’t shut down all hydraulics, disable autopilot, or switch to an alternate control mode.

The SERVO OFF control isolates hydraulic power to a specific stage of the three primary flight-control servos. Moving it from normal to the first stage shuts off the first stage across the three primary servos, and moving it to the second stage shuts off the second stage. This leaves the other stage(s) still providing some hydraulic assist, so you don’t lose all control authority—you're simply removing that particular stage’s contribution for testing, maintenance, or abnormal conditions. It doesn’t shut down all hydraulics, disable autopilot, or switch to an alternate control mode.