ATR 72 - 500
Flight Instruments
WHAT HAPPENS IN CASE OF AN AHRS FAILURE?
Single chime, “HDG FAIL” red message on associated EHSI and “ATT FAIL” red message on associated EADI
HDG FAIL red message on associated EHSI and ATT FAIL red message on associated EADI and AP disengages
HDG FAIL red message on associated EHSI and ATT FAIL red message on associated EADI, red flag on opposite RMI and AP remains engaged
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