The Duncan Download Blog: Business Aviation Advice & Observations

Phil Porter & Duncan Aviation’s International Aircraft Parts Department

Posted by Kate Dolan on Thu, Mar 24, 2016 @ 03:30 PM

Porter-Phil_sm.jpgIn 1978, Phil Porter was hired as Duncan Aviation’s first logistics manager; although, at the time, he was called a parts runner. Nearing the completion of his fourth decade at Duncan Aviation, Phil took some time to reflect on his long tenure with the company.

“I was going to UNL when my girlfriend Cindy took me up in her Cessna 150,” says Phil. “We dropped in on the Duncan Aviation ramp, and I was enamored of the place. Right then, I decided I wanted to be a part of it, so I changed my plans to head home to the Chicago area. Cindy and I got married, and I applied here for a job.”

Phil was both the aircraft parts runner and the shipping department back then, and he had to physically search shelves for parts. There were no computers or inventory control back then.

“And I personally packed up and shipped everything that left the company,” says Phil. “I’d call Trailways bus to find out the schedule and then drive the packages to the depot.”

One time Phil was unable to find a way to ship the horizontal stabilizer to Wichita, Kansas, for singer Paul Anka’s Learjet, so he packed it into his car and drove it there himself. Leaving Lincoln at 5:30 a.m. on a Saturday morning, Phil arrived at the Learjet facility about five hours later. He drove up to the main hangar, parked in the late Harry B. Combs’ [President of Learjet from 1971 until 1982] parking space, and looked for someone to help unload the stabilizer.

Although driving a stabilizer from one state to the next was somewhat unusual for a parts runner, Phil’s story illustrates how Duncan Aviation and its team members literally go the extra mile for customers.

Shipping parts to Mexico, Canada or anywhere in the world in the late 1970s was fairly unusual, too, because most of Duncan Aviation’s parts business involved Learjet aircraft, and Phil remembers that those parts shipped primarily in the United States.

There were notable exceptions, however, and in 1966, 10 years after Donald Duncan founded Duncan Aviation, Donald and Harry Barr partnered with Danish Pilot Captain Per Alkaersig to supply radio packages for Cessna aircraft that flew in the Scandinavian countries.

“I looked for a supplier of King radios and found Duncan Aviation. They would pick up the aircraft in Wichita and have it ready to ferry to Europe on a firm date,” says Per. “When I’d pick up the aircraft in Lincoln, I’d meet Donald and Robert Duncan and Harry Barr. What a great team! A handshake would close a deal.”

1985_piper.jpgWhen Duncan Aviation won the exclusive rights as master distributor for Piper (including Aztecs and Cubs) parts, Duncan Aviation began regularly shipping parts worldwide.

“Through our Piper parts agreement, I meet not only Piper dealers in Pennsylvania and Florida, but also made connections with companies in places like England, South Africa and Sweden,” says Phil. “We started dealing those parts in 1984, and we shipped quite a lot to Italy and Madagascar and to all of the little mom and pop shops around the world that needed parts for Pipers.”

Although Phil had been promoted from parts runner to sales around 1981, the worldwide parts distribution took off with the Piper deal, and in 1984, Duncan Aviation’s AvPac was born. Now known as Parts and Rotables, the annual sales of parts outside of the United States represents about 35 percent of all parts and rotables sales.

“Today, roughly one third of our team members work hours to accommodate our worldwide customers,” says Chris Gress, Manager of Parts and Rotables Sales.

Shirley Crouch and Tyler Stone work through the night so they can answer calls from customers in Australia and southeast Asia; Carol Hunt and Hannah Bodenstab support customers in South Africa; and Phil, Lance Tophoj, Jewell Chambers and Sandra Phelps support customers in Europe and South America. Sandra begins working at 4 a.m. so European customers can reach an actual person at the start of their business day.

In the early day, Phil sold Piper parts, and one of his first customers was Pilot John Egelykke who worked for a pump factory in Denmark called Grundfos. Per introduced John to Duncan Aviation in 1986, and John has been working with the company at its various locations ever since.

“The European aviation industry is a closely knit community. When you help customers locate parts or resolve problems, they remember you,” says Phil. “Over the years, in spite of the fact that some of my best customers have switched from one company to another, they remember that I helped, and they continue to call.”

John got to know Phil shortly after his first experience working with Duncan Aviation.

“Phil has been a great person to work with over the years. He has helped me a lot with AOG parts and a great number of quotes,” says John. “When Grundfos changed their aircraft management company to Air Alsie in 2011, I suggested taking the Falcon 2000 to Battle Creek for a C-check. I have always enjoyed working with Shawn Busby and Tom Burt, too.”

John stopped flying after 30 years and 14,000 hours as a pilot, and he now works as a Technical Advisor for Air Alsie. And he still recommends Duncan Aviation to his customers in large part because Phil took the time to forge a friendship on top of the business relationship the two men developed so many years ago.

2016 is a special year. It is Duncan Aviation’s 60th year of helping business aircraft operators be safe, efficient and productive. For six decades, customers have asked us for solutions and services. We are celebrating our 60 years by telling the stories about the people of Duncan Aviation who listened and took action.

Celebrate with us by subscribing to the Duncan Download blog, following us on Facebook and Twitter (@DuncanAviation) and visiting our anniversary website at

Lori Johnson has been the Marketing Communications Manager for Duncan Aviation for more than 20 years. She enjoys working with the smart and passionate aviation experts at Duncan Aviation, helping them connect with and educate customers about important industry topics.  

Tags: Aircraft Parts, International Considerations, 60th Anniversary

Aircraft Operators in Mexico Want Reliable Parts & Rotables Services

Posted by Lori Johnson on Tue, Mar 15, 2016 @ 09:00 AM

“Duncan Aviation has excellent aircraft parts availability, good prices and great service. We regularly use their parts and rotables services because their quality is awesome.” –Francisco Carrillo Peralta, Purchase Agent for ALE Service Center in Mexico.

With more than 15 years of experience as a maintenance and repair organization working in the Mexican market, ALE Service Center has three locations in Mexico and provides service for about 100 clients who operate Hawker-Beechcraft, Agusta, HondaJet and Bombardier aircraft.

“I can trust what Duncan Aviation tells me,” Francisco says. “If they say they have a part available, they do. And their ship times are accurate and fast.” No other aviation parts company can compete when it comes to customer value.

Chris Gress, Duncan Aviation Parts and Rotables Sales manager says it comes as no surprise when customers like Francisco keep coming back. “Duncan Aviation’s reputation in providing quality aircraft parts is widely known throughout the aviation industry. Our repair capabilities are top-quality and our prices are always a fair value. Anyone who has ever purchased an aircraft part that is tagged with a Duncan Aviation 8130 knows that they are getting a part that will be reliable with no warranty or failure issues.” 

la_foto_7.jpgChris will be at AeroExpo at the Toluca International Airport March 16-18. Stop by booth #20 to talk with him and other Duncan Aviation representatives.

Duncan Aviation’s international parts sales experience includes parts and rotables with completed and accurate 8130 paperwork, the management of repairs and overhauls sent to the U.S. to be serviced both by Duncan Aviation and other FAA approved U.S. Repair Stations; the consolidation of return shipments of freshly serviced components back to countries all over the world; and the safe shipment of hazardous material from the U.S. to countries around the world while meeting all regulatory compliance.

Just call +1 402.475.4125 to get instant service, 24/7/365, including holidays, nights and weekends. Or visit Duncan Aviation’s There’s no need to make dozens of calls and scour the internet looking for a part or service. Duncan Aviation has the component solutions you require and will quickly fulfill those needs.

To see more, check out our Parts Search at You can also download our mobile parts app to search from your phone. Just visit

Tags: Parts & Accessories, Aircraft Parts

In Business Aviation There are No Weekends

Posted by Diane Heiserman on Mon, Feb 15, 2016 @ 10:58 AM

iStock_000010546699_Small.jpgOn a Saturday…

A Flight Data Recorder that was on its way to an operator in Moanda, Gabon, Africa, from Phoenix, Arizona, U.S., by way of Boulazac, France, was stopped at the border of Gabon, tied up in the red tape of African Customs. The paperwork was denied by the Customs agency and the unit was not allowed to enter the country.

…do you wait until Monday to respond?

The business of business aviation does not sleep, especially when you consider the size of the industry and that all of the major players conduct business across several time zones, international borders and oceans.

It comes as no surprise to anyone at Duncan Aviation when a customer contacts us over a weekend with an urgent need; in the business of business aviation, there are no weekends.

Case in point: Jewell Chambers, a senior international parts sales rep for Duncan Aviation’s Parts and Rotables Sales, left work as normal on a Friday afternoon, looking forward to the weekend and her grandson’s fifth birthday.

She always enjoys her time away from work, but her customers are never far from her mind. Duncan Aviation Parts and Rotables Sales has 24/7/365 coverage, even on evenings and weekends. There is always someone available to answer the phones.

But when you’ve been doing this as long as Jewell has, you build relationships and long-time customers contact you directly. It has become part of her routine to check her email every Saturday and Sunday morning to make sure her customers in Europe don’t have pressing needs. On this particular Saturday, she received the urgent email above.

Jewell-grandson.jpgJewell and her grandson, Riley, celebrating his fifth birthday.

Jewel doesn’t mind helping her customers on the weekends, because if it is critical to them, then it is critical to her. She responded back with, “I’m on my way to the office to get you what you need.”

Within an hour, the proper invoice was on its way to Gabon by way of her customer in France and the unit was allowed into the country.

The weekend is her time away from work, but her commitment to doing the right thing by her customers saved them more than 36 hours of waiting. In her line of work, that is too long.

Besides, she made it back home in plenty of time for the birthday party.

Read more from the Fall 2015 Duncan Debrief Magazine

The Duncan Debrief free publication is available for aviation enthusiasts around the world through mail and online. To receive the magazine, subscribe here. Have an iPad? Access the magazine through the Duncan Debrief app. Search for Duncan Debrief in Apple’s App Store and download it. Once downloaded, you can receive push notifications each time a new Duncan Debrief magazine is published. 

Tags: Aircraft Parts, International Considerations

Duncan Aviation Makes Me Look Good In Front of My Customers

Posted by Diane Heiserman on Thu, Dec 17, 2015 @ 10:00 AM

21-phast.jpg“Customer service is key in my business and Duncan Aviation does it better than anyone.”
—Martha Everhart, owner Phast Parts Enterprise LLC

Phast Parts Enterprise Co-Founder Martha Everhart had a customer call her and say ‘“Cuida de mis negocios por favor.” That means “take care of my business please” in Spanish. He needed her assistance in getting the immediate repair of some aircraft avionics components on his Learjet that was soon to enter the market for sale.

Several of Martha’s customers are from Latin America and they seek her out to facilitate their aviation service needs in an English-speaking industry. It’s easy to understand why. As an American citizen originally hailing from Mexico with more than 20 years of experience working for aircraft manufacturers, Martha understands aviation and is able to overcome language and cultural barriers.

She feels this sector is sorely underserved and does anything and everything she can to meet their needs. She therefore called the only other company she knew that cared about customer service as much as she does.

She called Duncan Aviation. Tyler Lauer, customer account rep for Duncan Aviation’s avionics component repair services, answered her call.

Tyler listened to Martha’s needs and took immediate action by calling in Matthews Pastor, another customer account rep, to assist. They tag-teamed the project by having Tyler work directly with the OEMs on units sent out for repair while Matthews managed and coordinated all work performed internally at Duncan Aviation.

Martha was kept in the loop with daily emails, work orders and other progress reports. She was assured the units would be delivered when promised. “I had immediate communication,” says Martha. “They understood my urgency and responded with professionalism while under pressure. It didn’t matter if I talked to Tyler or Matthews, both answered my questions about the whole project. And I talked to them many times a day.”

Martha has been in this industry a long time and says the level of customer service that Tyler and Matthews provided her is unique. “My customer called me and said, ‘I don’t know where you sent my parts for overhaul, but I am getting them back already and it’s only been three days!” All remaining units, except for one due to a backordered part, were returned to the customer in Mexico within one week.

“When I send a quote to Duncan Aviation, I usually have my answer within 10 minutes. My customers are impressed that I am able to respond so quickly. My customers come back to me because I keep going to Duncan Aviation,” says Martha. “They make me look good.”

Read more from the Fall 2015 Duncan Debrief Magazine

The Duncan Debrief free publication is available for aviation enthusiasts around the world through mail and online. To receive the magazine, subscribe here. Have an iPad? Access the magazine through the Duncan Debrief app. Search for Duncan Debrief in Apple’s App Store and download it. Once downloaded, you can receive push notifications each time a new Duncan Debrief magazine is published.

Tags: Aircraft Parts

Want a lower price on your VG14A Gyro SPEX exchange? Now's the time.

Posted by Duncan Download Blog on Tue, Mar 31, 2015 @ 01:00 PM

7000622-901_Isometric_0Taking operator cost concerns to heart, Duncan Aviation and Honeywell Aerospace have worked together to develop efficiencies for Honeywell SPEX exchanges on the VG14A gyro that allow Honeywell to drop the exchange price of that unit by half.

"Operators prefer the value and quality of the Honeywell SPEX exchange for the VG14A gyro, but have provided feedback that they would like a lower exchange cost," says Kevin Miesbach, manager of Duncan Aviation's Avionics and Instrument Shop, which performs overhaul and recertification for all Honeywell SPEX VG14A exchanges. "Honeywell and Duncan Aviation collaborated and developed service efficiencies that allow for more value with the SPEX exchange on that unit."

Starting in April, operators will be able to receive the VG14A Honeywell SPEX exchange (part number PN7000622-901)for $5,500, half off the former rate of $11,000. However, customers who buy the exchange unit will still receive the same reliable, high-quality Honeywell unit backed by a full one-year unlimited warranty, Honeywell's liberal "no billback" guarantee and Duncan Aviation's excellent 24/7 customer service complete with same-day shipping and no AOG fees.

To purchase a Honeywell VG-14A SPEX exchange, call Duncan Aviation's Parts Sales at +1 402.475.4125 or 800.228.1836.

Tags: Aircraft Parts

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

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

Overhauling NAT (Cobham) Avionics Units

Posted by Diane Heiserman on Thu, Aug 01, 2013 @ 10:59 AM

Dan Magnus, avionics instruments tech rep

NAT avionics overhaul

Duncan Aviation avionics technician, Patrick Klein, tests a NAT TH250 tactical communications unit on the bench in front of nine NAT test sets.

Northern Airborne Technology Ltd (NAT), dba Cobham Avionics, designs and produces avionics communications equipment installed aboard helicopters. These units control the audio voice transmissions between the pilot and co-pilot and from the cockpit to the crew/cabin.

One of the more common failures that Duncan Aviation technicians have experienced with these units is intermittent audio squawks. The audio transmitted by these units passes through relays or electronic switches. As relays begin to lose conductivity causing poor contact, intermittent audio is the result. At this point the unit needs to be repaired or overhauled.

If you build it, they will come

Duncan Aviation has full overhaul and repair capabilities on many NAT units. These capabilities are continually growing as customers call and request to send their units to Duncan Aviation for repair or overhaul. If a request comes in and we don’t have a current test set capable of repairing their unit, we build it. And it doesn’t take as long as you might think. We are able to order the manual, build a test set, perform the repair or overhaul AND return the unit to the customer typically quicker than the OEM can do a repair.

Cobham (NAT) repair and overhaul capabilities

Duncan Aviation currently has a total of 12 test sets specifically built to troubleshoot and test hundreds of different Cobham (NAT) models and part numbers. Call a Duncan Aviation avionics tech rep to inquire about our repair and overhaul capabilities for your Cobham (NAT) unit.

Duncan Aviation provides comprehensive avionics and instrument overhaul and repair services, and we are an avionics and instrument authorized service center for more than 50 of the top equipment manufacturers. Our capabilities listings are available online in our inventory and capabilities search.

Dan Magnus is an avionics instrument technical representative located at Duncan Aviation's Lincoln, Neb., location. He specializes in ADF, Comms, Control Heads, CVR, DME Gables Control Heads, Receivers, Nav-Comm/Receivers, Radar Systems, GPS, GNS, Transponders and UNS Components and Systems Specialist. His aviation career began in 1976.

Tags: Avionics & Instruments, Aircraft Parts, Squawk Solution, Troubleshooting, Aircraft Communications

Consolidated Shipping Improves Service for Aircraft Parts Customers

Posted by Diane Heiserman on Thu, Jun 06, 2013 @ 06:00 AM

By Kevin Miesbach, Shop Manager-Avionics/Instruments

Duncan Aviation Materials Services

Duncan Aviation's Material Services Department processes an average of 500 inbound and outbound packages everyday.

On Monday, June 3, Duncan Aviation consolidated its Shipping and Receiving operations with all shipments to Duncan Aviation-Lincoln now going to one new centralized receiving location. This move improves the efficiency of how packages are received and moved about the company, resulting in many customer benefits.

Consolidated Shipping Services

Customers will no longer have to ship their accessory or avionics units to different physical addresses at the Lincoln Airport to reach the Duncan Aviation shop performing the work or needing the parts. That means whether customers are shipping an accessory item for repair or overhaul, an avionics unit for repair or overhaul, or sending Duncan Aviation an inventory of parts for consignment, they will be able to use the same address.

FedEx Zip Code –68500

As part of consolidation, Duncan Aviation has obtained a special zip code for use in the FedEx shipping system. All packages addressed to this zip code are delivered by FedEx to Duncan Aviation’s Lincoln facility first thing in the morning.

When sending units to Duncan Aviation via FedEx, please use the following address and zip code:

Duncan Aviation, Inc.
Shipping and Receiving
4001 N Park Rd
Lincoln, NE  68500

Reduced Turntimes

The consolidated shipping, along with radio frequency scanning technology implemented in Duncan Aviation’s package receiving process, allows for more efficient shipment receiving and dissemination. Units make their way from the receiving dock to the repair shop and ultimately the workbench even quicker than before and are able to see real-time when an expected unit is received into the system. And customer paperwork is electronically attached to the work order for a more efficient process all-around. We look forward to our customers experiencing the financial and turntime benefits of the new receiving procedures.

No AOG Shipping Charges

All Duncan Aviation customers who need AOG services and use the special FedEx zip code of 68500 no longer need to mark and pay for the “EARLY AM” service from FedEx. Technicians have already been reporting AOG units arriving earlier than the previous “EARLY AM” shipments.

Other Carrier Shipping

When sending units to Duncan Aviation via any other shipping carrier, please use the following address and zip code:

Duncan Aviation, Inc.
Shipping and Receiving
4001 N Park Rd
Lincoln, NE  68524

For the most efficient service, it is best to use the shipping addresses as outlined above. However, we have been assured by our carriers that if you forget and use the old addresses, shipments will still make it to Duncan Aviation and the proper shops.

Duncan Aviation's Component Solutions offers extensive aircraft parts repair and overhaul services—including loaners and exchanges—for avionics, instruments, parts and accessories, at the same time maintaining a large inventory of aircraft parts for sale. Their streamlined services and competitive turntimes satisfy hundreds of requests throughout the world 24 hours a day, 7 seven days a week.

Kevin Miesbach is Duncan Aviation's Avionics/Instruments Shop Manager at its Lincoln, Nebraska, facility. His aviation career began in 1985.

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


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