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Thread: AHRS Overload?

  1. #1

    AHRS Overload?

    Yesterday I was out doing G-load tests in the -3B. During a 4.5 G pull
    the AFS 5500 gave a warning message about a hard AHRS failure and
    said a reboot was required. This message stayed on the screen
    for the remainder of the flight, but the attitude indications appeared
    normal.

    Examining the recorded EFIS data, I found a momentary peak load of 4G
    recorded and the AHRS status changed from 0x0000 to 0x0401 and
    then immediately to 0x0001. When I landed, the status changed again to 0x0081.
    After a reboot, there were no further error messages.

    Is this the expected behavior?

  2. #2
    You can reset it in the SET AHRS Menu in flight to clear the error. I have forwarded your information to Crossbow.
    Rob Hickman
    Advanced Flight Systems Inc.

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