When AHRS Acts Up

Editorial Staff

Thursday, December 22, 2022 at 01:49 PM ET

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** The new Hartzell Cessna 182 prop** Hartzell

Key Takeaways:

Multiple incidents report Attitude and Heading Reference System (AHRS) failures across various aircraft types and flight conditions, leading to critical loss of primary flight data such as attitude, heading, airspeed, and altitude.
These failures manifest as "X" marks on displays, system shutdowns, and autopilot disengagement, occurring in diverse situations including cold weather, severe turbulence, and routine cruise.
Many AHRS failures are intermittent or self-correcting, making it challenging for maintenance and troubleshooting to identify a definitive root cause despite thorough ground tests.

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Beechcraft 58 Baron

Cold-Weather Failure

Editorial Staff