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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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.
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.
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.
Don't Let Your Spare Aircraft Batteries Go Flat! Keeping a stock of essential aircraft batteries is crucial for operational readiness, but did you know that improper storage can drastically cut their lifespan and capacity? While temperature affects performance in the air, the storage environment is key to minimizing self-discharge and maintenance needs. Discover how optimizing storage temperature—from the effects of higher heat to the benefits of cold storage—can save you money, extend battery life, and ensure your spares are ready to deliver maximum performance when you need them most.
Honeywell has issued two Category II Reliability Service Bulletins, TFE731-79-3070 R1 and TFE731-79-5120, for the installation of new instruction plate decals on oil tanks to help prevent oil over-servicing.
Transitioning to satellite-based systems of ATC require new standards and upgraded avionics equipment. We put together a timeline to help you see what mandates may apply to your aircraft and when.
August 5, 2014, is the deadline for AD 2013-13-09 on Learjet 60 aircraft. It requires up to four different Service Bulletins be installed, depending on serial number. Keep reading for a brief explanation of each.
Out of production Hawker aircraft parts cause major delays and frustrations. Duncan Aviation wants to share with you their success.
There have been some revisions to the Structural Repair Manual on various models of Damage Tolerant Citation aircraft that now allow Typical Repairs that were not allowed in the past.
The Gulfstream IV Structural Repair Manual is very specific on rivet substitution i.e.: It is not permissible to substitute a mechanical fastener in place of a solid fastener. Check all references to assure correct fastener installation.
Earlier this year, Honeywell released a Service Bulletin that introduced an improved gearbox cover and hydrodynamic carbon face seal to reduce oil leaks.
When a squawk appears intermittently, valuable clues may be left out when communicating the details. Use your Smartphone to grab the details.
The original equipment landing lights on Hawker aircraft have been a frequent source of frustration for operators. LoPresti BoomBeam lights use mercury and Xenon gas which yield whiter, truer colors and better performance.
In response to customers’ growing maintenance needs in large cabin Embraer and Gulfstream aircraft, Duncan Aviation has added a new tech to support these airframes at its Lincoln, Nebraska, headquarters.
The most common failure of an annunciator panel is a burned out lamp. Rockwell Collins has issued a Service Bulletin that provides a lamp that is more reliable with a longer life.