In my experience as an Avionics Tech Rep, unless I am talking to the person who witnessed the squawk, I go under the assumption that there is always more to the story than what I am told.
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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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The first step to troubleshooting an inoperable NAV is to identify the NAV source the pilot was using at the time of the failure.
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Tracing an intermittent component failure on a static test bench is a frustrating guessing game. Fortunately, you are already carrying the solution. Documenting a live squawk with your smartphone camera provides technicians with unmistakable visual evidence, eliminating vague diagnostic loops and ensuring the problem gets fixed right the first time.
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Collins Aerospace announced the discontinuance of the RTU-870 series Radio Tuning Units in 2014. While the upgrade path remains the primary long-term solution for many operators, it is not always the most practical or cost-effective option. Many operators seek alternatives to full system replacement.
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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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Unscheduled avionics squawks are an operational nightmare, often grounding your aircraft at the worst possible moment. The challenge isn't just the repair—it's the downtime spent guessing if the fault lies in the unit or the airframe. Duncan Aviation’s Loaner Program solves this by providing immediate cross-diagnostic units, letting you verify the fix and return to service while your original hardware is on our bench.
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Troubleshooting an autopilot altitude hold INOP squawk involves a complicated decision tree that includes several steps and scenarios. Here are three questions to get started.
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Maintaining the integrity of your weather radar antenna is vital for accurate hazard detection and flight safety. From inspecting physical warpage to ensuring correct system strapping, precise maintenance prevents the false returns and signal smearing that can compromise a pilot’s view of the sky.
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Customers often assume failures can’t happen when they aren’t flying but talk to any of Duncan Aviation’s Satellite Shops, and we’ll confirm it’s a very common occurrence.
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The main system components of the factory-installed FDR covered by STC10001SC-D are obsolete. They are no longer available for purchase or repair, and there is no longer a method of support for any of these critical FDR components.
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A little understanding on how radar stabilization works can help both the flight crew determine erroneous return information, and assist the maintenance technicians tasked with troubleshooting the system.
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Keep reading to learn the two steps to clear the Critical PAS/SBAS/WAAS messages after the FC06 update.
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Encountering CPU Fail, Data Bus Fail, or RAM Fail messages during your Universal FMS startup can be a frustrating experience for flight crews. However, these seemingly critical errors often have a surprisingly simple root cause.
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Long-time Duncan Aviation Components Tech Rep Curt Campbell shares his years of wisdom about troubleshooting autopilot systems on board King Air aircraft. When Curt talks, you need to listen.
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