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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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April 2026 Edition

The Current Aftermarket For The Bombardier Global Express XRS Business Jet

As the pre-owned aircraft market stabilizes, the Bombardier Global Express XRS has solidified its status as the top-tier value choice for ultra-long-range travel. Offering intercontinental reach and a proven platform at a significant discount compared to newer models, the XRS represents a strategic entry point for value-conscious operators. The following analysis breaks down the current pricing trends, critical value drivers, and the competitive landscape for this enduring market leader.

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April 2026 Edition

Optimizing Falcon Jet Cabin Comfort: The Critical Role Of Temperature Sensor Maintenance

The precision of an aircraft’s Environmental Control System depends on small, often-overlooked temperature sensors. These units act as miniature vacuums, drawing in cabin air, along with dust and debris, to provide the real-time data necessary for passenger comfort. This article explores why regular cleaning and maintenance of these sensors is critical to ensuring the ECS delivers the precise climate control it was engineered to provide.

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April 2026 Edition

Is It Possible To Wash My Jet's Engine Too Much?

It’s a common question that many operators hesitate to ask, but the answer is a definitive no. In reality, regular gas-path cleaning is a vital pillar of preventive maintenance, especially for aircraft operating in salt air or polluted environments. A strategic wash schedule is your best defense against performance loss and the high cost of corrosion.

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April 2026 Edition

Comply Proactively With SB 45-27-54: Learjet Aileron

Affecting 600+ aircraft, these Learjet aileron Service Bulletins require specialized NDT inspections and structural modifications. Duncan Aviation’s experts break down the requirements, downtime expectations, and why choosing the right facility is vital.

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The Trouble With Troubleshooting Squawks

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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RVSM Monitoring Requirement

In an FAA Reduced Vertical Separation Minimum (RVSM) Notam dated March 9, 2011, operators of aircraft authorized to use RVSM airspace must conduct monitoring every two years or within 1,000 flight hours per aircraft, whichever period is longer.

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Embraer Service Bulletin on Control Cable Turnbuckles

Due to the report of missing locking clips, Embraer has just released two Service Bulletins that require the inspection of the turnbuckles installed on the control cables throughout certain S/N Embraer Phenom 100/300 model aircraft.

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Falcon 900B Frame 10 Corrosion

Because of the high probability of future corrosion around the fasteners of the front center panel ahead of frame 10, Duncan Aviation strongly recommends to comply with SB 392.

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