Sidestick Link Failure

Gulfstream GVII

Eddie sez:

There isn't much here other than the AFM procedure. I'll give this more thought when I get a chance.

Everything here is from the references shown below, with a few comments in an alternate color.

Last revision:


AFM Procedure

[AFM, §03-13-160]

Possible Causes

Both sidesticks are operating in active mode but are unlinked due to loss of communication between sidesticks.


Click photo for a larger image

System Impacts

Roll Trim Backdrive: Not available (Roll Trim remains available).

Corrective Action


    Each flight crew will not “feel” the sidestick inputs being made by the other the flight crew member.

    Pilot recognition will rely on an unexpected airplane response and / or alerting by the Dual Stick Input (caution) CAS message.

  1. Pilot Flying . . . Positively identify pilot flying, and subsequent control transfers

  2. PITCH TRIM . . . Maintain trimmed flight condition

Gulfstream GVII-G500 Airplane Flight Manual, Revision 4, August 29, 2019

Gulfstream GVII-G500 Production Aircraft Systems, Revision 3, July 15, 2019