Intermittent Switches on JET Yaw Damper Computers
The four OFF switches on these Yaw Dampers are well known for becoming intermittent and stuck, causing the unit to not function.
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The four OFF switches on these Yaw Dampers are well known for becoming intermittent and stuck, causing the unit to not function.
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Your TDR-94/94D transponder communicates what is happening on the inside of the unit through error codes presented on the display. There are Level 1 Failure codes that, if ignored, are detrimental to the unit and will cost you more in the end.
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If the transponder on your aircraft is off frequency, it could begin to reject the beacon from ATC.
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Completing a proper shutdown every time will prevent this.
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My APS-80 autopilot is desengaging at altitude. The APC is OK. What else should I look at? Keep reading to find the answers to a recent question.
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Duncan Aviation has the exclusive rights to reconfigure these loaner units to meet the lighting, power configurations, and tilt angles based on your platform requirements.
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We often receive FMS units in with squawks ranging from RAM Failure to Blank Display.
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During these procedures make sure the vertical gyro is secured on a tilt table so no movement occurs during testing.
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As condensation collects on the windshield of our aircraft, it has to drip somewhere. And that somewhere is directly on this units below.
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A picture is worth a thousand words. A video says it all. Most pilots or line techs are already carrying one of the most helpful troubleshooting tools known to man, a phone with a camera.
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With this authorization, we are able to support operators throughout the entire modification process of the TDR-94/D units from component modification to system installation and certification.
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The technology of radar is a great tool to avoid severe weather, but it is important to remember its limitations.
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The Duncan Aviation /Garrett APU system interfaces with the aircraft’s electrical system and includes controls for operating, monitoring, and regulating the APU. As seldom as these systems fail, when they do, it can be confusing to determine which box is causing the problem.
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“This unit causes a constant ‘stab off’ condition and pushing the stabilization switch on and off has no effect.”
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Universal 4” & 5” FPCDUs are used widely on all make model aircraft in both commercial and business aviation. Here are the most common squawks seen by Duncan Aviation on these units.
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