The Duncan Download Blog: Business Aviation Advice & Observations

Hawker Airframe: Don't Forget Chapter 24

Posted by Diane Heiserman on Thu, May 28, 2015 @ 08:00 AM

In the April 2015 Duncan Intelligence, Dave Ungvarsky, Hawker tech rep, talked about how some of the information in Chapter 24 of the AMM goes unnoticed or unheeded.

Hawker-Torque_blogDuring a recent project, the Duncan Aviation Hawker airframe team troubleshot an aircraft with intermittent static plate heat. Their investigation revealed a damaged terminal block which most likely resulted from improper torqueing of the terminal nut and improper orientation of the terminals themselves.

Most of us are familiar with the torqueing of fasteners as required in the AMM for the task being performed. If no specific torque value is noted, then we rely on Chapter 20 (Standard Practices) for determining the proper torque value. Unfortunately, sometimes the information on torque loading contained in Chapter 24 (Torque Loading of Electrical Connections) goes unnoticed or unheeded.

That appears to be the situation here with the damaged terminal block. Not only were the terminals not oriented correctly, it appears an improper torque was applied.

Chapter 24 contains essential information to assure that electrical connections are properly made to ensure that systems operate correctly and are safe.

Duncan Intelligence

Do you want to read more technical articles about the Hawker airframe? Go to the Hawker Duncan Intelligence archives  here.

For more than 18 years, Duncan Aviation has been producing the Duncan Intelligence, a free, technical newsletter for business aircraft owners and operators.

Written in-house by experienced technical reps, each edition includes technical tips and advice on topics and trends in business aviation.

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Tags: Airframe Maintenance

International Business Dealings with Duncan Aviation

Posted by Kate Dolan on Tue, May 26, 2015 @ 08:00 AM

In the seven years Technical Manager (Director of Maintenance) Klaus Rasmussen has worked for Denmark-based Air Alsie, he’s traveled to Duncan Aviation in Battle Creek, Michigan, many times. 

Learn why he continues to fly the more than 6,500 kilometers for aircraft service.

Of the 20 aircraft Air Alsie manages, 15 of them are Falcons. Although Air Alsie is a factory authorized Dassault Line Center and performs smaller inspections, minor repairs and warranty claims, Klaus says he still sends the Falcon aircraft he manages to Battle Creek for major structural repairs and modifications and for C inspections because Duncan Aviation is a Dassault authorized heavy service center.

Starting the Relationship

In 2011, Klaus attended the European Business Aviation Convention & Exhibition (EBACE) in Geneva, Switzerland, where he met Duncan Aviation’s European Regional Manager Arjen Groeneveld. Klaus remembers wondering how Duncan Aviation’s prices compared to the European service centers.

Arjen quoted three C checks, some avionics installations and minor modifications. Klaus was impressed with the prices, and after taking those first Falcons to Battle Creek in 2011, he was also pleased with the workmanship.

“On that first trip to Battle Creek in 2011, we were checking out the quality. We’ve been to other facilities for inspections and interior work. In the end, our decision was based on the fact that we’ll get good quality at better prices at Duncan Aviation than at the other facilities,” says Klaus.

Another reason Klaus values Duncan Aviation is because of the transparent approval system. Duncan Aviation’s online project tracking system, myDuncan, lets him follow the check almost in real-time, and, when the work has been completed, all of the paperwork is finalized immediately.

“I appreciate it that we don’t have to wait. We get all of the paperwork, invoices and certification immediately,” says Klaus. “We check the invoice, and the prices are always pretty close to the figures that we had budgeted before going in. That’s extremely important to us because we don’t own the aircraft – we manage it – so all of the costs are passed along to our customers.”

Deepening the Relationship

Air_Alsie_blogL to R: Project Manager Shawn Busby, Technical Manager of Air Aisle Klaus Rasmussen and Airframe Service Rep Alan Monk.

Since that first trip, Klaus has been back to Battle Creek numerous times, and he’s developed close relationships with Senior Airframe Sales Representative Alan Monk and Project Manager Shawn Busby.

“The personal relationships make it easy to get in touch with the right people when there are issues. And, let’s face it, there are always going to be issues,” says Klaus. “It’s important to me to know Arjen, Alan and Shawn so well I can reach any of them at any time. I don’t want to have to go through a layer of people who don’t know me or care about me or my aircraft. I want to go to them directly, and I can and do.”

Often work relationships develop into close personal friendships, and Alan considers Klaus a friend as well as a customer.

“We both have families, and Klaus and I often talk about our kids. It’s interesting because parents seem to face similar issues no matter what part of the world they call home,” says Alan.

Shawn also values the close, personal relationship he has with Klaus.

“Personally, I consider Klaus as much of a friend as I do a customer. I enjoy hearing about his daughters, what they’re doing, and their horseback riding adventures,” says Shawn.

Read more Duncan Aviaton's customer in the latest issue of the Duncan Debrief.

Spring 2015 Duncan Debrief Read Now!

Tags: Customer Testimony, International Considerations, Customer Service

Its' A Wrap! Duncan Aviation at EBACE 2015

Posted by Diane Heiserman on Fri, May 22, 2015 @ 01:00 AM

Another sucessful year at EBACE 2015.

Over the last three days hundreds of attendees stopped by to say hello, giving us the opportunity to connect with customers, business partners and friends. We value this time to strengthen established relationships and forge new ones. 

Along the way, we had a lot of fun. Hope you did too. Have a look at our EBACE 2015 photo album below. 


Arjen Groeneveld, European regional manager; Phil Suglia, manager-service sales and John Slieter, VP of Sales, take a pre-show bike ride through the tulip fields of Amsterdam. 


Duncan Aviation's booth is ready for visitors before opening day.  


During an in-booth reception, Duncan Aviation and Safran Engineering Services announced a new Supplemental Type Certificate for FANS-1/A solution that will cover the Bombardier Challenger 601-3A/3R business 


In the photo L to R: aircraft.

John Slieter, Duncan Aviation Vice President of Service Sales
Wolf-Godart von Drachenfels, Executive VP Business Strategy, Safran Engineering Services (Safran Group)
Aaron Hilkemann, Duncan Aviation President / CEO.  


Above photo 1: (L to R) Steve Gade, Duncan Aviaiton's VP Business Development with Murray Smith, Publisher of Professional Pilot magazine.

Photo 2: (L to R) C.R. Sincock and Craig Sincock, Avfuel Corporation's  Managing Director, Business Development and President / CEO with Aaron Hilkemann


Joep Cuppens, completions sales; Melissa Raddatz, avionics sales and Phil Porter, parts sales at Ebace 2015. PhilS_bloggroup1_blog

Phill Suglia, Arjen Groeneveld and Laura Bongers greeting customers in Duncan Aviation's booth.

 Thank you. Let's do it again next year!

Tags: International Considerations, Conventions & Exhibitions

Duncan Aviation & Safran Engineering Services Announce FANS-1/A STC

Posted by Duncan Download Blog on Wed, May 20, 2015 @ 08:50 AM


During a reception at the European Businss Aviation Convention and Exhibtion in Geneva, Switzerland, Duncan Aviation and Safran Engineering Services announced a new Supplemental Type Certificate for FANS-1/A solution that will cover the Bombardier Challenger 601-3A/3R business aircraft.

Safran Engineering Services will be in charge of the design and certification while Duncan Aviation will be responsible for the installation of the avionics into the aircraft. Duncan Aviation will be the owner of the Supplemental Type Certificate and is also responsible for the sales and marketing of the solution.

In the photo L to R: John Slieter, Duncan Aviation Vice President of Service Sales,  Wolf-Godart von Drachenfels, Executive VP Business Strategy, Safran Engineering Services (Safran Group), Aaron Hilkemann, Duncan Aviation President / CEO. 

Read the full announcement here

Tags: International Considerations, FANS, NextGen

Is Flying to Duncan Aviation Worth the Trip For European customers?

Posted by Diane Heiserman on Tue, May 19, 2015 @ 01:00 AM

Arjen Groeneveld has been the European Regional Manager for Duncan Aviation for five years. When he first started knocking on doors and talking about the company to European operators, he was met with… “What is it going to cost me?” This came as no surprise to him, because Europe was a relatively new market for Duncan Aviation.

Ocean-Routes-from-EURThey wanted to know why they should fly their aircraft to the other side of the pond to have service performed. In the beginning, Arjen admits that the euro to dollar exchange rate (near 1.5) in 2011 had a huge impact on getting business in the door.

Customers like Nataly and Ernst Langer, owners and pilots of a Bombardier Global 5000 out of Germany and Klaus Rasmussen, technical manager of Denmark-based Air Alsie, were among the many European operators who took advantage of this economic benefit and gave Duncan Aviation a try. What they found was a company that offered comprehensive airframe services at the highest quality and shortest downtime.

Now in 2015, euro to dollar exchange rate has dropped significantly. But that hasn’t stopped international operators from making the journey.

Groeneveld-Arjen_blgArjen Groeneveld, European Regional Manager.
Business aviation operators in Europe are a small group and they talk to each other. As a result, Duncan Aviation’s reputation as a company that delivers top quality service at a great value, quick downtime and always worth the trip has spread.

“We have customers who fly from Europe to have maintenance completed at one of Duncan Aviation's United States locations,” says Arjen. “The fact that they're willing to make that trip tells us we're doing something right.

This is why they come: Worldwide Business Aircraft Operators Tell It Like It Is 


The European Business Aviation Convention & Exhibition (EBACE) opens in Geneva, Switzerland today. Arjen and several other Duncan Aviation representatives will be at Stand #N090. Stop by and let us introduce ourselves and tell you why we are worth the trip.

Tags: Customer Testimony, International Considerations

Video: Todd Duncan Explains the Strength of Duncan Aviation

Posted by Diane Heiserman on Wed, May 13, 2015 @ 09:03 AM

Todd_Robert_PK_Harrison_blogAs the fourth generation of  the Duncan family joins the team, the company is focused squarely on the future. 

In this video, listen as Todd Duncan explains the strength of Duncan Aviation and what it means for the long-term.

“It's a long term prospect for my family. It's a long term prospect for our team members. And for the customers who use us, they understand it's a long-term prospect for our relationship."  

—Todd Duncan, Chairman. 

Tags: Announcements, Careers & Recruiting, Videos

Duncan Aviation Paints Virgin's Galactic Girl

Posted by Duncan Download Blog on Wed, May 06, 2015 @ 01:00 PM

GalaticGirl4_blogWe can finally talk about this super secret project our Battle Creak, Michigan, paint team completed. 

The challenge: Paint Virgin's Galactic Girl.

The aircraft: Falcon 900EX.

The solution: Our team partnered with artist, John Stahr, to airbrush the well-known logo. When a customer comes to Duncan Aviation with a unique request, we make it happen. Watch the process in just a minute and a half.


Tags: Paint Refurbishment, Videos

Real Answers to Operator Questions About ADS-B

Posted by Diane Heiserman on Tue, May 05, 2015 @ 07:00 AM

Duncan Aviation recently released an updated Straight Talk book on the NextGen initiative Automatic Dependent Surveillance-Broadcast (ADS-B). Intended as a learning tool to answer your questions regarding ADS-B Out, we also hoped it would inspire more questions and discussion surrounding the NextGen technologies.

We have not been disappointed. The questions have been rolling in ever since.

ADS-B_GraphicBelow are real questions from aircraft operators just like you and their answers.

What are the mandated interfaces required for ADS-B? We have found two formats right now and would like to know if there is going to be a required interface format to the receiver.

Answer: I don't believe that there is a mandated interface between the hardware components. However, there are only a couple being used. Off the top of my head, they are RS-232 and Arinc 429.

Do TCAS-II-equipped large airplanes see UAT equipped GA airplanes directly?

Answer: A TCAS-II-equipped aircraft will not see a UAT-equipped aircraft any better than if the aircraft did not have a UAT. A TCAS-II-equipped aircraft will see it by virtue of the TCAS. Did you mean ADS-R system?

That being said, several manufacturers have been experimenting with ADS-B signal processing as a component of the TCAS-II algorithm. You may see reference to "hybrid surveillance" in some publications. Hybrid Surveillance is exactly what you are imagining, where the TCAS system will see the ADS-B signals of other aircraft and add the information to its processing in order to achieve a more robust picture of the traffic in a particular area.

Why can't someone create a way to send a coded PIREP via ADS-B Out so ATC and every other ADS-B-In receiver can capture it? That way, in addition to FIS-B one could have real-time PIREPS AND Pilots would be much more willing to send reports versus changing frequencies to EFAS and verbally providing a report at great risk of missing a critical ATC transmission?

Answer: Unfortunately, ADS-B is not designed to carry messaging other than what is being mandated. However, digital messaging of all types is being developed as we speak, which will likely accommodate your idea.

If I have a 1090 Transponder, and a sat nav capability. Exactly what do I need additionally to comply with the ADS-B mandate? It is simply to format the sat nav info for 1090 broadcast, right? What would a simple system diagram look like for this integration?

Answer: You are close. The 1090 Transponder (for Part 25 aircraft) must be Mode S and meet the specification necessary to transmit ADS-B information. The GPS data must also be WAAS/GPS information supplied from a WAAS/GPS engine which meets the WAAS specification. Then they must be connected and configured properly. There must also be a component installed which monitors the WAAS/GPS/ADS-B data for failure which supplies that failure information to indications in the cockpit.

Is there such a thing as ADS-B In for 1090ES? Or is that only for UAT?

Answer: Yes...there is. Although the manufacturers have not focused on 'In' yet, as they are still struggling with 'Out', at least in terms of Part 25 applications.

How do I upgrade Honeywell Sys TCAS-II to 7.1

Answer: The upgrade for your Honeywell TCAS system depends on the exact system you have installed. If you provide us with the part number for the TCAS processor installed in the aircraft, we will be able to tell you the upgrade path.

In 2020 will the current transponder and Mode C equipment become obsolete and the FAA no longer accept codes and information from that equipment? Do I turn off my Mode C transponder on 1 Jan 2020, and not use it anymore?

Answer: The answer to your question depends on the specific aircraft you are referring to.

The short answer is no. Your transponder and Mode C equipment remains and ADS-B is added. ADS-B will become primary ATC and transponder secondary. Assuming you are referring to a Part 23 aircraft, you have the option of equipping for ADS-B with 1090ES transponder upgrades, or with a UAT transmitter.

How can I find out what version of transponder I have in a Falcon 2000, s/n 022

Answer: If you can tell me the part numbers of your transponders, I can tell you exactly where it stands. They will be Collins TDR-94Ds with Part Number 622-9210-XXX. The -XXX are the three numbers that I need to know.

Follow-up question 1: Both transponders have -008 at the end of the part number.

Follow-up answer 1: You have Elementary and Enhanced Surveillance with the -008 Transponders. They would need upgraded to -501 for ADS-B Out status. The pre-requisite for ADS-B will be a WAAS upgrade to your existing Flight Management Systems, which on S/N 022 (I believe) are the Collins FMS and GPS-4000s.

Follow-up question 2: The airplane is for sale and the buyers want to know if it’s just a software or hardware change. They are looking for a dollar figure for what it will take. Is it closer to 20K or 100K? We have Collins FMS, and GPS 4000a

Follow-up answer 2: It's a hardware change. For ADS-B, the airplane would need the WAAS upgrade with FMS upgrades, GPS-4000Ss and -501 TDRs with some annunciators in the cockpit. The mods would be closer to $150k.

Follow-up questions 3: This is great info. Without this upgrade, after December 2015 this Falcon will not be able to go into Europe?

Follow-up answer 3: No sir. The EASA mandate for 2015 is forward-fit. All new aircraft being certificated in EASA countries must meet the mandate. Retrofit aircraft (such as the Falcon) need to be retrofit by 2018. With that said, the Falcon may start to see some degradation of flight services because it is not equipped, but it will be legal to fly in EASA airspace.

What and when do we need to equip a 1975 Gulfstream II, s/n xxx?

Answer: I assume your G-II is N-registered. As such, the aircraft will need to be equipped with ADS-B Out in order to operate in U.S. airspace by January 2020.

In a Part 25 aircraft like yours, it will likely need to be fit with a WAAS-enabled GPS sensor and dual Mode S transponders which have ADS-B capability. I can tell you more if I had some detailed information about the current equipment configuration in the aircraft.

Besides the cost issues raised in the GA market to implement ADS-B, what are the key challenges, as of 2014, that lie ahead for meeting the FAA 2020 ADS-B mandate?

Answer: There are a couple of challenges we have been working to overcome. All of these issues are specific to Part 25 certificated aircraft.

         - Certification manpower and understanding by local FAA representatives.

         - ADS-B product development has been extremely slow to come to market.

         - The sheer number of aircraft and aircraft types.

How ADS-B information is used in Flight Management System (FMS)?

Answer: Your onboard Flight Management System does not employ ADS-B information. In some aircraft, the Flight Management System with an approved WAAS-GPS receiver can provide GPS information to the ADS-B system, but that is the extent of the interface.

What are the implications and deadlines for experimental aircraft?

Answer: The rules are indiscriminate between experimental and non-experimental aircraft or Part 91 and 135. They are dependent on where your aircraft is flying.

As with the current transponder operating requirements, the ADS-B rule requires operators to have ADS-B Out avionics installed and operating in order to fly their aircraft in the busiest airspace, as described below:

- Class A, B, and C airspace.

- All airspace at and above 10,000 feet Mean Sea Level (MSL) over the 48 contiguous United States and the District of Columbia.

- Within 30 nautical miles of airports listed in 14 CFR §91.225, from the surface up to 10,000 feet MSL.

- For Class E airspace over the Gulf of Mexico from the coastline of the United States out to 12 nautical miles, at and above 3,000 feet MSL.

The date for the mandated equipment to be installed, certified and operational is January 1, 2020.

How will ADS-B impact airfield design?

Answer: At this time, I don't know what impact ADS-B will have on airfield design. My guess would be that airfield design will be more affected by increased capacity needs in the future.

At Duncan Aviation, we continuously strive to be the voice of clarity in our acronym-happy aviation industry and aim to provide you with thorough information in clear, concise, no-nonsense language.

If you haven’t already, download your free copy of the most recent version of the ADS-B Straight Talk book here.

  Download PDF Now

Tags: ADS-B, NextGen

Duncan Aviation Supports One Day Without Shoes

Posted by Duncan Download Blog on Fri, May 01, 2015 @ 08:57 AM

In celebration of Earth Day, Duncan Aviation in Lincoln, Nebraska, partnered with several businesses and schools, to participate in the Cornhusker State Bank One Day Without Shoes drive to benefit the local homeless shelter, People's City Mission! 

The generosity of Duncan Aviation employees contributed five full barrels of shoes to the more than 16,000 pair of shoes collected across the community.  

Shoe-drive-2015Clothing-drive-2015In addition to shoes, employees cleaned out their dressers and closets and donated bags of clothing to support another local charity, Catholic Social Services. At the end of this three day event, a trailer full of clothing was pulled away.

All donations were welcomed. Clothing and shoes not fit to be worn will be recycled and any money earned from that recycling will be used to provide counseling, pay utility bills and rent, etc. for those in need.

Five years ago Duncan Aviation brought a group of team members together from all across the company with the goal of researching and implementing "green" initiatives that will save energy and money, reduce waste and give precise focus to innovative efforts, as well as strategic priorities. To this end, at the beginning of this they removed all Styrofoam cups from break rooms and continue to provide education on how to go green.

As a group, they wanted not only to impact change while at work, but also to encourage change in the daily lives of all Duncan Aviation team members. Their message is that even small changes can have a large impact.

“We saw the shoe and clothing drive events as an opportunity to combine our green initiatives with our strong support of volunteerism in the community,” says Kaela Paseka, lead graphics designer at Duncan Aviation and a member of the Green Team. “Each year we plan to pick a different organization in the community to support.”

Tags: Announcements

Todd Duncan Announces 2015 Scholarship Winners

Posted by Duncan Download Blog on Wed, Apr 29, 2015 @ 03:43 PM


The Karen K. Duncan Scholarship Program was started in 1999 to support the continued education of the children of Duncan Aviation's employees.

Contributed by Todd Duncan, chairman

Education is important to Duncan Aviation. We invest a lot in our people and their training and professional knowledge. It is also something that as a family, we embrace personally. 

I am a strong believer in personal development for myself. My wife, Connie, is a former teacher with Lincoln Public Schools in Lincoln, Nebraska, and currently leads the Duncan Family Trust in support of programs that benefit the educational of our local youth.

The Karen K. Duncan Scholarship Program was started to help Duncan Aviation team members fund post-secondary education expenses for their kids. All dependent children of full-time Duncan Aviation team members who are entering a two- or four-year college program or technical school are eligible. In the 16 years since we started this program, more than 200 scholarships totaling $1,400,000 have been awarded.

This year, as we do every year, we had so many talented and driven young people apply for the Karen K. Duncan scholarship. I am proud to announce that we have the opportunity to award 20 more scholarships to deserving students. The recipients were carefully chosen by an independent selection committee based on their essay submissions, as well as, academic achievement, citizenship activities, leadership skills and extracurricular and volunteer activities.

To all of the 2015 Karen K. Duncan Scholarship winners, Congratulations! You should all be very proud of what you have accomplished so far in your young lives. On behalf of Duncan Aviation and the Duncan family, I wish you the very best in your future endeavors.

2015 Karen K. Duncan  Scholarship Winners

Tags: Announcements, Careers & Recruiting, Community


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