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.
Subscribe now to receive the Duncan Intelligence in your inbox.
Honeywell issued Service Bulletin AS907-72-9094 that calls for the replacement of the #4 carbon seal on the HTF7000/AS907 series engines. We can do this as an engine-only event in as little as 4 days.
Are your aircraft's RVSM operations fully compliant? While FAA requirements shifted away from standalone approved programs, configuration control and height-monitoring standards remain strictly enforced. Learn the key differences between Section 9 and Section 3 pathways and Duncan Aviation’s role in keeping you airworthy.
As business travel demands grow, many owners of piston twins begin looking at turboprops for greater range, payload, reliability, and operational flexibility. But moving to turbine power involves more than buying a larger aircraft. From maintenance planning and pilot training to operating costs and regulatory requirements, a successful transition depends on carefully matching the aircraft to the mission. This article examines the key benefits, tradeoffs, and considerations to help buyers determine whether a turboprop is the right next step for their operation.
Most overhaul delays don't start in the shop. They start with the logbooks when the serial number stamped on a part doesn't match the one listed in the maintenance logs. Reconstructing that paper trail can ground an aircraft for weeks and force you to replace parts that are actually totally fine. Here's a quick breakdown of where Chapter 5 records often fall through the cracks and how to resolve discrepancies before your aircraft goes down.
While the FAA encourages the TCAS 7.1 upgrade, strict ICAO and EASA mandates make it a necessity for international operators. Learn how Version 7.1 improves flight safety, impacts your flight plans, and what certification path your aircraft requires.
An over-serviced brake fluid reservoir and a worn seal can cause a sticky and expensive situation for sensitive electronic equipment nearby.
In winter, it takes very little ice at the bottom of the engine inlet area to prevent the fan from rotating freely, and a frozen fan can result in expensive engine damage upon starting.
Approximately 98% of all beacon activations in the U.S. are false alerts. In 2021, ELTs accounted for 57%, despite comprising only 17% of the total registered beacons listed on the NOAA website.
Many factors will cause a low or high oil pressure indication on Honeywell TFE731 engines, one of the more common causes is a faulty Breather Pressurizing Valve
Successfully fly with the Honeywell ED800 EFIS for years to come
Duncan Aviation Technicians recommend a reconditioning program for the Lear/Bendix starter 6608268-6 on Learjet 35/55 aircraft.
When your starter generator is in need of overhaul, keep these modifications in mind and ask your overhaul facility what modifications they recommend to get the full life out of your unit.
The starter generator is an essential component of your aircraft, but its reliability depends on proper maintenance practices. One critical task is replacing the brushes inside. However, optimal performance goes beyond just swapping out old parts.
Bleed air system leaks are common and often neglected for one reason or another, but one thing is certain, a leak never fixes itself.
It's crucial to choose a reputable and experienced aircraft broker to maximize these advantages