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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

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.

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March 2026 Edition

Upgrading Legacy Audio: PS Engineering PAC37 Panels

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.

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Pre-Purchase Evaluation Checklists

Our pre-buy evaluation checklist was created to detect the most commonly found discrepancies we see daily while performing routine and structural inspections.

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Rader Antenna Switch Settings

When replacing an ART-2000 or ART-2100 radar receiver transmitter with a loaner or replacement unit, make sure to check that the antenna switch settings are set to the proper flat plate.

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Lead Acid Aircraft Battery Maintenance & Charging

All aircraft batteries, regardless of whether they're a ni-cad, lead acid or lithium, will require maintenance at some point and time. It is important to perform these maintenance checks at the required intervals and as instructed in the prescribed maintenance instructions.

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Washing Your Pratt & Whitney Engine

I was recently asked by a customer, “Is it possible to wash my Pratt & Whitney engine too much?” The operator considered his inquiry to be silly when, in fact, it’s a very valid question.

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