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:

In-flight failures of Attitude and Heading Reference Systems (AHRS) are reported across various aircraft types, leading to the loss of critical flight data and often autopilot disengagement.
Many AHRS malfunctions are intermittent and difficult to diagnose, with systems sometimes recovering during flight or showing no faults during subsequent ground tests.
Some failures appear to be triggered by environmental conditions like very cold temperatures or severe turbulence, necessitating reliance on backup instruments, emergency declarations, or diversions.

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Beechcraft 58 Baron

Cold-Weather Failure

Editorial Staff