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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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.
The bottom line is this. Don’t wait until the end of the pre-buy to begin planning for what happens next. You’ll be waiting longer than necessary.
If your Universal FMS System is not on a general maintenance program, you run the risk of losing valuable Pilot Data.
Visual inspection of conductive edge sealer should be part of your regular de-ice system checks
Good ideas drive innovation, but without proper evaluation, planning, testing, and certification by experts, they’ll only be good ideas.
The bottom line is if you are not getting the complete picture from a submitted quote, you should feel comfortable calling the MRO salesperson and having them walk you through it to better understand the proposal details and the ultimate workscope.
During autopilot-engaged flight, oscillations can occur in the roll, pitch or yaw axis. The most commonly squawked oscillation occurs in pitch and is often referred to as porpoising.
We recommend inspecting this are for proper bolt conformity and torque.
If your Learjet 40/45 has more than 4,800 hrs. of total time and a Calendar Phase D Inspection has been performed, we highly recommend reviewing your aircraft’s records to ensure these IRNs did not get missed.
Bombardier issued two Service Bulletins calling for drainage improvements and corrosion protection to the Mid and Outboard flaps on the Bombardier Global.
If these units are ever pulled for operational failure, they should be sent in immediately for evaluation. The longer they sit on a shelf, the more likely corrosion will invade the internal parts, potentially causing more problems at disassembly.