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Duncan Intelligence Newsletter

The Duncan Intelligence is a free, technical newsletter for business aircraft owners and operators. Written in-house by Duncan Aviation's technical representatives, each edition includes technical tips and advice on topics and trends in business aviation. It is a free, monthly e-mail subscription for aviation enthusiasts around the world.

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March 2026 Edition

Honeywell IntuVue RDR-7000 Weather Radar System

Feb 23, 2026, 11:30:00 AM

Accurate airborne weather radar is a critical component of flight safety and operational efficiency. Convective activity, turbulence, hail, lightning, and windshear pose ongoing operational challenges, often resulting in delays, reroutes, structural damage, and increased maintenance costs. Advances in predictive radar technology are intended to improve detection accuracy, reduce crew workload, and enhance situational awareness in these environments.

March 2026 Edition

Upgrading Legacy Audio: PS Engineering PAC37 Panels

Feb 23, 2026, 11:15:00 AM

Business aircraft operators with older audio systems often face challenges maintaining reliable communication and audio quality in the cockpit and cabin. For aircraft equipped with legacy Baker 1045 audio panels, the PS Engineering PAC37 offers a modern, plug-and-play replacement with enhanced flexibility and features.

February 2026 Edition

Bombardier Learjet Horizontal Stabilizer Actuator

Jan 26, 2026, 11:45:00 AM

There should never be a time during installation, testing, or adjustment when the potentiometer rods on the actuator are adjusted.

February 2026 Edition

Common Battery Warranty Claims That Can be Prevented

Jan 26, 2026, 11:30:00 AM

Sulfation of the plates and damaged terminal studs are common warranty claims that can be prevented or lessened by following simple operational and maintenance procedures.

February 2026 Edition

Common Troubleshooting Questions for Autopilot Squawk – Altitude Hold INOP

Jan 26, 2026, 11:00:00 AM

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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February 2026 Edition

Troubleshooting and Inspecting Weather Radar Antennas: Ensuring Flight Safety

Jan 26, 2026, 9:30:00 AM

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.

February 2026 Edition

The Impact Of Missing Business Jet Logbook Entries On Pre-Purchase Evaluations

Jan 26, 2026, 9:00:00 AM

When valuing an aircraft, you either have complete, consecutive, and original logs or you do not. During a pre-purchase evaluation, the logbook plays a major role, and vague or incomplete statements can be troublesome and delay closing.

January 2026 Edition

Are You Buying The Right Aircraft For Your Needs?

Jan 5, 2026, 9:45:00 AM

Selecting the right business jet is a high-stakes investment, but the sheer volume of data can make narrowing your search feel overwhelming. Duncan Aviation has simplified this process with an updated Model/Market Summary that compares everything from hourly operating costs to full-seat range across the latest airframes. Check out how this tool can streamline your next acquisition and help you identify the perfect model for your mission.

January 2026 Edition

Navigating The Regulatory Skies: How Aircraft Paint Approvals Vary By Country

Jan 5, 2026, 9:15:00 AM

A fresh coat of paint is more than just a cosmetic upgrade—it’s a regulatory event that varies significantly by jurisdiction. While the FAA views painting as routine maintenance, authorities like EASA classify it as a design change requiring formal approval. Learn how understanding these regional nuances can help you avoid costly administrative delays and keep your aircraft compliant across international borders.

Removing Obsolete Systems and Antennas on Business Jets

Jan 5, 2026, 9:00:00 AM

As business aviation fleets modernize, many aircraft are still carrying the literal weight of the past. Removing obsolete avionics and legacy antennas can reduce maintenance burdens, improve performance, and boost resale value. This article explores why streamlining your aircraft’s configuration is a strategic investment in long-term operational efficiency.

January 2026 Edition

Peace of Mind Beyond OEM Warranty: Why CASP is the Smart Choice for Avionics Protection

Dec 29, 2025, 3:45:00 PM

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.

January 2026 Edition

Safety & Compliance: Why Detailed Aircraft Logbook Entries Matter

Dec 28, 2025, 10:30:00 AM

What can ground an aircraft faster than a failed component? Documentation. When you think about what keeps your aircraft airworthy, you usually think of tangible systems such as engines, avionics, landing gear, and flight controls. Rarely does paperwork top the list. It should.

December 2025 Edition

Aircraft Sales & Acquisitions: 2025 Year-End Trends, Market Behavior, and What Buyers Should Expect

Nov 24, 2025, 9:00:00 AM

As 2025 comes to an end, ACS Rep Rene Cardona reflects on what shaped this year’s preowned business jet market. The fourth quarter is always busy, but this year brought a unique level of intensity, driven by economic uncertainty early on and a surge of confident buyers later. Here’s his perspective on what we experienced in 2025—and what to expect as we head into 2026.

December 2025 Edition

Nose Landing Gear: Shimmy Vs. Out-Of-Balance Wheel

Nov 21, 2025, 11:45:00 AM

Don't get grounded by confusing nose wheel vibrations! A true nose gear shimmy—that rapid, side-to-side oscillation—is a serious issue often linked to play in the torque links, requiring immediate mechanical attention. In contrast, a simple vertical shudder felt during taxi or initial climb is often just an easily corrected wheel imbalance. This quick guide details the key differences and the essential steps to accurately troubleshoot the condition, starting with a simple inspection of the nose gear scissors.

Make Records & Research A Priority In Your Maintenance Event

Nov 21, 2025, 11:00:00 AM

Is your aircraft compliant? Missing small inspections tied to STCs or life-limited parts can lead to costly downtime and mandatory replacements. Learn why detailed records research is essential.