The Duncan Download Blog: Business Aviation Advice & Observations

Aircraft Parts Consignment: The Business of Building Relationships

Posted by Duncan Download Blog on Tue, Jun 09, 2015 @ 09:00 AM


"Space and time—they're the top two reasons operators come to Duncan Aviation instead of trying to sell their excess parts on their own," says Parts Expert Susan Masek.

After all, how many operators have the extra square footage required to house all of their surplus parts? And who has the time and marketing resources to match these parts with potential customers?

Not many, which is why so many operators choose to pair up with Duncan Aviation's aircraft parts consignment program.

"Instead of an operator storing, cataloging, advertising, selling, invoicing, collecting payment, packaging and shipping parts on their own, we take care of it all for them," says Susan. "We buy parts. We buy avionics. But sometimes consigning is the best option."

For three decades, the consignment experts at Duncan Aviation have helped operators convert surplus parts to cash. They have it down to a science.

To read more about this process, view our Spring 2015 Duncan Debrief


Tags: Parts & Accessories

24/7/365 Service Means We're There When You Need It Most

Posted by Duncan Download Blog on Thu, Jun 04, 2015 @ 07:30 AM

Every minute of every day, Duncan Aviation Parts Sales is waiting for your call.


“Some of my customers say they feel bad calling at 1 a.m., or on a holiday, but I tell them these are normal hours for us. We’re here, waiting to help,” explains Shirley Crouch, team leader for Duncan Aviation Parts Sales. “And at the end of the day, I really love helping customers find a solution when they keep running into walls.”

Shirley’s years of experience combined with her team’s 24/7/365 availably means each customer who calls receives streamline, top-notch customer service.

Duncan Aviation Parts Sales in Action

Shirley recently answered a call from a customer in Spain who had to be up and running in less than 24 hours. Based on past experience, she feared customs might cause a delay.

So she opted to have a courier hand-carry the aircraft parts to ensure all customs requirements were addressed along the way, reducing the AOG time from days to just hours.

“We will go to the ends of the earth to get a part to a customer who is AOG,” says Shirley.

The customer was ecstatic, as he fully understood how difficult his request was to fulfill on a short timeline as well as adhere to all import and export regulations—a task Duncan Aviation team members continually educate themselves on.

His aircraft was up and running in more than enough time to make the trip to Singapore.

Contact Us Todayparts-2

Duncan Aviation’s Parts Sales team provides customers with an experience, unlike any other. They use their imagination to creatively solve the issues their customers face, and Shirley says customers know they can depend on her and the rest of the Duncan Aviation team.

That's why customers call back—all hours of the day, 365 days a year.

Call +1 402.475.4125 or 800.228.1836 for a live professional. You can contact our team via Live Chat as well.

Tags: Parts & Accessories

Challenger! Learjet! King Air! Oh My! Gear Sets Are Landing at Duncan Aviation

Posted by Diane Heiserman on Thu, Feb 05, 2015 @ 12:16 PM

Landing-gear-shop-fullA near-record number of landing gear sets and components are in-house at Duncan Aviation’s accessories shop in Lincoln, NE.

According to Tony Curtis, landing gear team leader, seven full sets of landing gear and a “whole slew” of individual components, such as struts and oleos, have filled the shop and kept the schedule very busy. All shifts are working tirelessly overhauling or inspecting gear sets and components from Challenger 300, Challenger 604, Challenger 601, Learjet and King Air aircraft.

Although three sets have been completed and already shipped back to operators, Jon Hein, accessories service sales rep, says the workload doesn’t appear to be letting up anytime soon. “Over the next several weeks, many more sets and component parts are scheduled to arrive.”

Because an aircraft can’t go anywhere without its legs, Duncan Aviation has invested heavily in the landing gear customer more than doubling its Accessories shop area, gaining approximately 6,300 square feet of service area, doubling its work benches and adding new tooling and in-house capabilities, including an overhead crane and a new paint booth with curing room.

In 2014, they acquired the capabilities to completely overhaul and repair landing gear for both commercial and business Embraer aircraft. With the necessary technical data, maintenance manuals and aircraft landing gear parts, Duncan Aviation’s Accessories Services has received and successfully overhauled two sets of Embraer gear to comply with the 144-month landing gear restoration.

Take a moment and watch this before and after ERJ-145 overhaul video.



Tags: Parts & Accessories, Learjet, Landing Gear, Challenger

Don’t Blame Your Aircraft's Battery

Posted by Diane Heiserman on Tue, Nov 04, 2014 @ 12:00 PM


 An aircraft’s battery is one of the highest-maintenance components on board. Not many other items are due every three months or 100 hours. And for organizations with heavy flight schedules, such as charter services or air ambulances, batteries could require the aircraft to be down nearly every month.

Yet this workhorse of a unit is continually ignored, left idle and unused for long stretches of time, pushed hard with low levels and occasionally allowed to deep discharge. Through it all, it is expected to function without fail.

And it is cursed when, during that one critical flight when the company’s president is on board, the battery will not crank and the aircraft and passengers are stranded.

Although the first reaction may be to fault the battery, according to Brian Teeters, aircraft battery technician for Duncan Aviation, most premature battery failures can be contributed to one thing…human error.

Purchase the Correct Battery

A well-maintained battery will provide three to five years of dedicated service, maybe even more. And that premature failure is not a defect or fault on the part of the battery, but rather on the operator for not purchasing the correct battery required for their flying schedule. 

The best battery purchase for a charter company, air ambulance or any other company that flies short, frequent one- and two-hour flights many times a day or week is not be the same battery that will provide years of faithful service to a flight department with a less demanding schedule.  

Environmental conditions are also a factor. Brian says extreme cold and hot climates, such as the northern territories of Canada or along the equator will impact the longevity and effectiveness of battery life.

Brian warns, however, that just having the correct battery for your flight operation will not prevent premature failure. Batteries still require regular maintenance and care.

Properly Care for the Battery

When asked for one piece of advice regarding batteries, he was quick to point out “most problems could be avoided if the last one out of the cockpit would simply shut off the lights.

“The number one reason aircraft batteries fail at start-up is because they were allowed to deep discharge overnight when the master switch was left on.”

An overnight deep discharge is especially devastating for lead acid batteries. When a small charge is left to pull from these batteries, even for just a few days, the cells are destroyed. There is no alternative but to replace them.

“Make sure all the switches are off before putting the aircraft to bed. It takes only a few seconds to shut it down, but many pilots miss that step,” Brian says.

To some, an aircraft battery is a simple purchase. However, based on the number of batteries that come to Duncan Aviation for maintenance and repair, it is a purchase that should be taken seriously.

Brian and the rest of the Duncan Aviation battery team see up to 150 batteries every week.

This two-room shop has every test set, battery charger and capacity gauge available to perform capacity checks, testing and maintenance for every aircraft battery in service on the various business aircraft in use today. About 75 percent of the batteries that arrive at the shop are checked, charged and returned to customers in fewer than five days, with many others in fewer than two.

He knows more about aircraft batteries than most. And he wishes operators would give batteries more credit.

Think about it. The batteries are the first component to engage an aircraft’s electrical system and the last line of defense before everything shuts down in an emergency.

You want them to work.

You need them to work.

Before making this important purchase, discuss your needs and operation requirements with a provider who has extensive technical experience and knowledge servicing aircraft batteries. Might I suggest this smart guy

Brian’s advice for getting the most out of your aircraft battery:

  • If operating with lead-acid batteries, having the electrolytes at a proper level is necessary. Too often this gets checked only once a year.
  • Make sure the master switch is in the off position before shutting down the aircraft and walking away.
  • When on the ground, disconnect the aircraft batteries and use ground batteries.
  • Use ground power assist at start-up.
  • Perform periodic voltage and visual inspections. There should be no excessive voltage difference between cells, electrolyte build-up or bulging cells.
  • Don’t ignore the 100-hour inspection requirement.


Tags: Parts & Accessories

Duncan Aviation Parts Team Connects with 82 Countries

Posted by Duncan Download Blog on Tue, Oct 07, 2014 @ 11:21 AM

Duncan Aviation Parts Chat

How can we best reach our customers all around the globe at any hour? Via online chat, of course.

Earlier this year,  the Duncan Aviation Parts and Rotables Sales team launched live online chat support, and their team has already connected with thousands of customers in 82 countries—instantly.

“Customers seeking parts and rotables sales information can talk to a real person, at any time and get immediate answers to their questions, such as stock quantities, pricing and availability,” explains Parts and Rotables Sales Manager Chris Gress. “They don’t have to pick up the phone or send an email. It has been a great tool.”

Email can take minutes or even hours to get a response and phone calls can be expensive for international customers, but Live Chat is an instant message window, providing that immediate response customers demand.

The Live Chat button is visible on all Parts and Rotables pages when a representative is available.

Duncan Aviation’s team has connected with the following countries:

Albania Ecuador Malta Russian Federation Venezuela
Argentina Egypt Mexico Rwanda Vietnam
Australia El Salvador Republic of Moldova Saudi Arabia  
Austria France Namibia Singapore  
Bahrain French Polynesia Nepal South Africa  
Bangladesh Gabon Netherlands South Korea  
Belgium Germany New Caledonia Spain  
Belize Greece New Zealand Sri Lanka  
Bolivia Guatemala Nicaragua Suriname  
Bulgaria India Pakistan Switzerland  
Canada Indonesia Panama Taiwan  
Chile Israel Paraguay Tonga  
China Italy Peru Turkey  
Columbia Japan Philippines Uganda  
Costa Rica Kazakhstan Poland Ukraine  
Croatia Kenya Portugal United Arab Emirates  
Czech Republic Lithuania Puerto Rico United Kingdom  
Denmark Luxembourg Qatar United States  

Read more about Duncan Aviation Parts Chat window in the 2014 Fall Duncan Debrief. 

Fall 2014 Debrief Download Now


Tags: Parts & Accessories

Duncan Aviation in 2013: A Year of Accessory Service Expansion

Posted by Diane Heiserman on Thu, May 22, 2014 @ 01:27 PM

For Duncan Aviation’s Accessories area, 2013 was a year of growth. The service shop doubled in size and cutting edge technology bolstered available in-house capabilities. This growth and accompanying shop enhancements were all completed with the customer in mind. Marty Lincoln, manager of Duncan Aviation’s accessories area, is serious about doing all he can to support every accessories customer. “By investing today, we are prepared tomorrow to meet all of their needs in our house,” he says.

Here’s a brief glimpse into the 2013 expansion of Duncan Aviation’s Accessories Services featured in the Spring 2014 Duncan Debrief.

Duncan Aviation accessories expansion

The expanded accessory shop service area added approximately 6,300 square feet, doubled bench space and added new tooling and expanded in-house capabilities, including an overhead crane and a new paint booth with curing room.


A new 300 square foot paint booth and a 400 square foot curing room increase work capacity and improve efficiency.


The new Fryer Machine Systems CNC mill has a near 3,000 pound load capacity, a table size of 17x63 inches and a position accuracy of +/-0.0002 of an inch.



The in-house hydraulic Skydrol test bench provides additional capacity and capabilities for large-body aircraft.

Click on the link below to continue reading other feature articles in the Spring 2014 Duncan Debrief magazine. 

 Spring 2014 Duncan Debrief Download & Read Now

Tags: Parts & Accessories, Landing Gear

Consequences of Vague Instructions: Sending Aircraft Units for Repair

Posted by Diane Heiserman on Fri, Feb 07, 2014 @ 01:51 PM

Submitted by Jerry Cable, accessories tech rep

describe the image

Avoiding vague or incomplete instructions when sending in aircraft units in for repair and overhaul will save you hours of troubleshooting time and unnecessary expense.

Here. Fix This. 

This reminder may sound obvious, but it is amazing how many accessory units are sent into Duncan Aviation with no explanation or only very little instruction. Within the last year we’ve had a starter generator show up with no paperwork. Is it here for the 2,000 hour overhaul or 1,050 bearing change? What about the actuator with a note that simply said “repair.” Repair what? What is the squawk? When does it occur? 

When this happens we run a function test and hope the results identify the issue. However, this isn’t always a guarantee. Not all squawks can be duplicated on the bench. And many times the problem is related to other aspects of the flight or external conditions and may only fail on the bench when these conditions can be recreated. Taking note of the conditions when the component or system fails, is essential to the effective and timely resolution of the problem.

When removing any units from your aircraft, whether it’s an accessory, avionics, instrument, etc., that is to be sent in for repair or overhaul, always identify the squawk or inspection that needs attention. Having the right information about the circumstances surrounding a squawk can save your tech rep many hours of troubleshooting time and yourself a considerable amount of money.

Duncan Aviation provides accessory unit repairs and overhauls for most popular business aviation airframes. All accessory test equipment is calibrated using NIST certificate traceability. This includes three stab actuator test stands and several sets of test equipment unique to Duncan Aviation.

Jerry Cable is an Accessories Tech Rep located at Duncan Aviation’s Lincoln, Nebr., facility. He is a landing gear and accessory components and systems specialist. His aviation career began in 1991.

Tags: Parts & Accessories, Avionics & Instruments, Aircraft Parts, Troubleshooting

Aircraft Parts On Speed Dial

Posted by Diane Heiserman on Tue, Dec 03, 2013 @ 09:39 PM

Kassim Khan

"My customers continue to return to me for service because I turn to Duncan Aviation. They've never let me down."
Kassim Khan, Aviation Parts & Supply

If you’ve ever had to hunt for a specific aircraft part, component or avionics unit, you are well aware of how difficult it is to do a thorough research, locate a reputable supplier, negotiate pricing and schedule delivery. Most of the time, you are under a strict time constraints and need the aircraft part or avionics unit now and you don’t want to deal with all the issues that can complicate the process along the way; issues, such as no available inventory, managing billbacks, no traceability documents and lack of warranty support.

Kassim Khan, co-owner of Aviation Parts & Supply, an aviation parts broker supporting several corporate flight departments, has relied solely upon Duncan Aviation for 18 years to provide the parts needed to serve their customers. “The bottom line is that Duncan Aviation has never let us down,” says Khan.

Read Aircraft Parts on Speed Dial on page 29 of the Fall 2013 issue of Duncan Debrief and find out why Kassim has only one number in his phone when it comes to finding aircraft parts. 

Duncan Aviation maintains a large inventory of aircraft parts for sale. Our streamlined services and competitive turntimes satisfy hundreds of requests throughout the world 24 hours a day, 7 seven days a week. Our many awards testify to the quality of our service.

Tags: Customer Testimony, Parts & Accessories, Avionics & Instruments, Aircraft Parts, Customer Service

Duncan Aviation Landing Gear Services by the numbers: infographic

Posted by Diane Heiserman on Tue, Nov 19, 2013 @ 01:50 PM

Today we are taking a break from the typical Duncan Download blog post to do something a little different. Rather than tell you all the facts about how the Duncan Aviation Accessories area has expanded its landing gear services or explain why all landing gear service facilities are not created equal, we are going to let the numbers speak for themselves.

Here's a detailed pictograph of the Duncan Aviation's landing gear services over the last 35 years.

 landing gear infographic

Tags: Parts & Accessories, Landing Gear

Learjet: Common Exchanged Parts

Posted by Diane Heiserman on Tue, Oct 29, 2013 @ 07:00 AM

Contributed by Larry Stewart, rotable manager

Duncan Aviation has built and maintained one of the largest business aircraft parts inventory in the industry. Our team of aviation professionals has the experience, contacts and connections to identify and secure some of the hardest to find business aircraft parts.

Because of our long history and experience with the Learjet aircraft, we know the most commonly exchanged parts and keep an inventory available to meet customer needs.

Below are some of the more commonly exchanged life-limited parts on a Learjet airframe that have been known to not make the next Time Before Overhaul (TBO).

stab actuator

Stab Actuator 2332540-214

The stab actuator adjusts the horizontal stabilizer to provide longitudinal trim. The actuator comes due for overhaul every 600 hours. Failures that sometimes occur are unit trips autopilot off line, & no manual trim.

Modulating Valve 6600202-1

Modulating Valve 6600202-1, -3

The modulating valve regulates the mixing of bleed air to control temperature. If it becomes stuck open or closed, aircraft cabin temperatures can become uncomfortable. The value is spring-loaded and sometimes fails to compress on run-up. It is not uncommon for these valves to leak over time.

Hydraulic Pump 6600301-3

Hydraulic Pump 6600301-3

The hydraulic pump controls the flow of hydraulic fluid through the system. Hydraulic fluid leaking at the drive shaft is a symptom of the nose seal failing to make a proper seal.

Static Inverter 6608109-3

Static Inverter 6608109-3

The static inverter powers all onboard instruments that need aircraft power. Failures include unit being intermittent, pops breaker, and low or no output.

NWS Servo 6608278-2

NWS Servo 6608278-2

The nose wheel steering servo controls the rate of turn while aircraft is being taxied. Common failures are time change, pops breaker, low torque and pulls to the right or left.

Parts & Exchanges

 Duncan Aviation is constantly adding to its inventory to ensure customers have a true one-stop shop when it comes to acquiring parts or exchange units. Search our on-line inventory for aircraft parts and inventoryavailability or chat live with a Parts & Rotables Sales Rep. Our international business aircraft components solutions experts are available 24/7/365 and can handle any business aircraft system problem with immediate parts exchanges.

Larry Stewart is a Rotable Inventory Manager located at Duncan Aviation’s Lincoln, Nebraska, facility. He specializes in the Learjet and Citation airframes. His aviation career began in 1973. 

Tags: Parts & Accessories, Aircraft Parts, Learjet


Subscribe by Email