System Overview
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AURAL ALERTS
Aural alerting, through the aircraft intercom system, is provided
for warnings from the autopilot. In the context of the bullets
below, “coupled” describes the condition when the autopilot
servos are flying the airplane and “non-coupled” describes the
condition when the servos are not flying the airplane and instead,
the pilot is expected to follow the flight director command bars.
Specifically, aural alerts as defined in the parenthesis are
provided under the following conditions:
Autopilot Disengagement (Approximately 16 disconnect
beeps)
Underspeed during coupled operations (“Speed
Protection Active”)
Overspeed during coupled operations (“Speed Protection
Active”)
Underspeed during non-coupled operations (“Caution,
Underspeed”)
Overspeed during non-coupled operations (“Caution,
Overspeed”)
Dual AHRS equipped systems: Attitude and Heading
Reference System (AHRS) Miscompare (“Gyro
Miscompare”)
Single AHRS equipped systems: Attitude and Heading
Reference System (AHRS) and Turn Coordinator
Miscompare (“Gyro Miscompare”)
Single AHRS equipped systems: Crosscheck Attitude 1
(“Gyro Miscompare”)
POH bank limit exceeded (“Caution, Excessive Bank”)
POH flap extension speed exceeded (“Caution, Flap
Overspeed”)
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