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The Duncan Download Blog: Business Aviation Advice & Observations

Duncan Aviation Releases March Duncan Intelligence

Posted by Duncan Download Blog on Thu, Mar 09, 2017 @ 09:00 AM

Have you heard about the Honeywell HTF7500E Stator Vane Seal Inspection Program? How about the cause behind those intermittent software failures on your Avidyne EX-500 MFD? 

No? Then you haven't read the March issue of the Duncan Intelligence. 

 March Duncan Intelligence

Falcon 7X Flap Rigging Precautions

 Caution is needed when rigging the flaps on a Dassaut Falcon 7X aircraft.

ADS-B Solution for Bombardier Challenger 800/850 SE Aircraft

 This was an industry-first installation in the United States and was performed in the customer’s hangar.

Honeywell HTF7500E Stator Vane Seal Inspection Program

 This inspection program is applicable to the HTF750E model engine.

Why Is My Avidyne EX-500 MFD Experiencing Intermittent Software Failures?

 Completing a proper shutdown every time will prevent this.

Got a crack in your APU Exhaust Support? Don’t Replace It. Repair It.

 Duncan Aviation has AWS D17.1 certified welders and inspectors on-site, all capable of welding all types of materials for aerospace applications.

The NBAA Tech Committee Wants To Hear From You

Progress can only be accomplished if we have regular interaction with and feedback from you, the Citation operator.

Get The Duncan Intelligence In Your In-box

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.

Duncan Intelligence Subscribe Now

Tags: Avionics & Instruments, Engine Maintenance, ADS-B, Falcon, Challenger

Duncan Aviation Releases December Duncan Intelligence

Posted by Duncan Download Blog on Thu, Dec 15, 2016 @ 10:43 AM

Did you know that we have the exclusive rights to reconfigure AIM® 1100/1200 series attitude indicators and gyros to meet your platform requirements? 

Have you heard that legacy aircraft operators have another transponder option to meet the ADS-B mandates?  

No? Then you haven't read the December issue of the Duncan Intelligence.

Didn't receive the Duncan Intelligence? Subscribe Now

 
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HTF7000 Service Bulletin Update

There are a number of Honeywell HTF7000 SBs that have become hot items. These can be accomplished at our Turbine Engine services shop, or any one of our Engine Rapid Response locations across the United States.

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Don’t Delay When Sending Control Rod Assemblies In For Repair/Overhaul

If these units are ever pulled for operational failure, they should be sent in immediately for evaluation. The longer they sit, the more likely corrosion will invade causing more problems at disassembly.

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NXT-700 Mode S Transponder Satisfies the DO-260B Mandate for ADS-B

The ACSS NXT-700 AML STC is complete and ready to meet the ADS-B mandate for many legacy aircraft operators.

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AIM (Extant) Attitude Indicators Repair/Mod/Loaner Capabilities

We have the exclusive rights to reconfigure these loaner units to meet the lighting, power configurations, and tilt angles based on your platform requirements.

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Keeping Out-Of-Production Parts Available

When these units require replacement, your only options are to: 1) buy a whole new servo unit or 2) upgrade the entire avionics package of the aircraft.

Tags: Parts & Accessories, Avionics & Instruments, Engine Maintenance, NextGen

Aircraft Tool Calibration: 5,000 Years in the Making

Posted by Diane Heiserman on Tue, Sep 27, 2016 @ 09:22 AM

Egyptian-Cubit-up-close.jpgHanging in Duncan Aviation's Calibration Services Lab is a poster about the History of the Egyptian Cubit. It depicts the beginning of tool calibration more than 5,000 years ago. Many similarities to modern calibrations still remain.

It is believed that around 3,000 B.C. the Egyptian unit of length was established. The Royal Egyptian cubit was decreed to be equal to length of the forearm from the bent elbow to the tip of the extended middle finger plus the width of the palm of the hand of the Pharaoh ruling at the time. The Royal Cubit Master was carved from a block of black granite to endure for all time (the equivalent of today’s primary standard).

Workers building tombs, temples and pyramids were supplied with cubit sticks made of wood or granite. The Royal Architect or foreman of each construction site was responsible for maintaining and transferring the unit of length to the workers’ cubit sticks (modern tool calibration). It was required that the cubit sticks be brought at each full moon (calibration cycle) to be compared to the Royal Cubit Master to ensure their accuracy. Failure to do so was punishable by death (OK…some things have changed).

The strict accuracy of the cubit is why many magnificent structures, such as the Egyptian pyramids, survive today. Egyptians took their metrology very seriously and as a result, their measurement accuracy was impressive. Over a distance of 230 meters, measurements typically varied by only 0.05%.

Maintaining tool accuracy through periodic tool calibrations remains extremely important to guarantee a unit or measure can transfer from one aircraft to another and one country to the next. 

The next time you reach for that torque wrench or micrometer, ask yourself, “am I getting the most accurate reading I need? How do I find out?”

Duncan Aviation Calibration Services

Duncan Aviation’s Calibration Services use NIST traceable standards to calibrate measuring & test equipment (M&TE). Bring your tools with you the next time your business aircraft is serviced at one of our full-service maintenance facilities. They will be returned to you when you are ready to leave, properly calibrated and ready for use.

Can’t be long without your tools? Send them to us and we’ll have them back to you in fewer than five days.

Calibration Services

  • Certified to ISO/IEC 17025:2005
  • Certified ASQ-CCT technicians
  • Calibration data available
  • Repair capabilities on most M&TE

For a complete list of our calibration capabilities, download the Duncan Aviation Calibrations Fact Sheet.

Calibrations Fact Sheet Download Now

Tags: Avionics & Instruments, Airframe Maintenance, Tool Calibrations

Aircraft Tool Calibration: 5,000 Years in the Making

Posted by Diane Heiserman on Tue, Sep 27, 2016 @ 09:00 AM

Egyptian-Cubit-up-close.jpgHanging in Duncan Aviation's Calibration Services Lab is a poster about the History of the Egyptian Cubit. It depicts the beginning of tool calibration more than 5,000 years ago. Many similarities to modern calibrations still remain.

It is believed that around 3,000 B.C. the Egyptian unit of length was established. The Royal Egyptian cubit was decreed to be equal to length of the forearm from the bent elbow to the tip of the extended middle finger plus the width of the palm of the hand of the Pharaoh ruling at the time. The Royal Cubit Master was carved from a block of black granite to endure for all time (the equivalent of today’s primary standard).

Workers building tombs, temples and pyramids were supplied with cubit sticks made of wood or granite. The Royal Architect or foreman of each construction site was responsible for maintaining and transferring the unit of length to the workers’ cubit sticks (modern tool calibration). It was required that the cubit sticks be brought at each full moon (calibration cycle) to be compared to the Royal Cubit Master to ensure their accuracy. Failure to do so was punishable by death (OK…some things have changed).

The strict accuracy of the cubit is why many magnificent structures, such as the Egyptian pyramids, survive today. Egyptians took their metrology very seriously and as a result, their measurement accuracy was impressive. Over a distance of 230 meters, measurements typically varied by only 0.05%.

Maintaining tool accuracy through periodic tool calibrations remains extremely important to guarantee a unit or measure can transfer from one aircraft to another and one country to the next. 

The next time you reach for that torque wrench or micrometer, ask yourself, “am I getting the most accurate reading I need? How do I find out?”

Duncan Aviation Calibration Services

Duncan Aviation’s Calibration Services use NIST traceable standards to calibrate measuring & test equipment (M&TE). Bring your tools with you the next time your aircraft is serviced at one of our full-service maintenance facilities. They will be returned to you when you are ready to leave, properly calibrated and ready for use.

Can’t be long without your tools? Send them to us and we’ll have them back to you in fewer than five days.

Calibration Services

  • Certified to ISO/IEC 17025:2005
  • Certified ASQ-CCT technicians
  • Calibration data available
  • Repair capabilities on most M&TE

For a complete list of our calibration capabilities, download the Duncan Aviation Calibrations Fact Sheet.

Calibrations Fact Sheet Download Now

Tags: Avionics & Instruments, Airframe Maintenance, Tool Calibrations

Duncan Aviation Releases September Duncan Intelligence

Posted by Duncan Download Blog on Wed, Sep 21, 2016 @ 09:00 AM

Have you heard the latest about the FAA's new regulatory requirements for RVSM? How about how WAAS upgrades can impact aircraft sales in Europe?

No? Then you haven't read the September issue of the Duncan Intelligence. 

September Duncan Intelligence

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FAA Removes Regulatory Requirements for RVSM Maintenance

In a recent move, the FAA has removed the prerequisite that requires aircraft operators who fly in RVSM airspace to have an FAA-approved RVSM Maintenance program.

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TR Added to Bombardier Learjet 20 & 30 Model Series Aircraft Maintenance Checks

The Bombardier Learjet 20 & Learjet 30 series Time Limits and Maintenance Checks have recently added a new Temp Revision to Chapter 5-10-29.

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WAAS Upgrades, EASA & Aircraft Sales

If you are planning or may be planning to sell or change an aircraft registration to an EASA-member country, you need to be aware of this.

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Top Seven Questions Customers Have About Aircraft Paint

Duncan Aviation Regional Manager shares the most common questions he is asked about aircraft paint.

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New Duncan Aviation Test Set Helps Reduce AP Function Test Times

We designed and built a new test set that automates the testing process of the Collins AP 106/107 systems, reducing anticipated function test times.

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.

Duncan Intelligence Subscribe Now

Tags: Avionics & Instruments, Airframe Maintenance, WAAS, Learjet, NextGen, Aircraft Paint

Aircraft Window Condensation Can Cause Avionics Instruments Corrosion

Posted by Duncan Download Blog on Wed, Aug 24, 2016 @ 09:26 AM

An aircraft charter company recently sent a Baker Audio Panel to our avionics instrument shop in Lincoln, Nebr., that was inop. We immediately sent a loaner back so the aircraft would not miss any flights. When the squawked unit was opened, Duncan Aviation avionics instrument technicians found it was full of corrosion in the back end.

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On several make/model aircraft, the Baker Audio Panel sits directly below the windshield. And over time as condensation collects on the window, it has to drip somewhere. And that somewhere is directly on this unit below.

Although you cannot prevent corrosion, you can slow its growth by being aware of any moisture near avionics units. As condensation collects on the windshield, clean it off.

It is also a good idea to visual inspect the outside covers of the avionics units that sit under your aircraft’s windshield. If you see any evidence that water has been dripping on them, you can just about bet there will be evidence of corrosion on the inside. At your next scheduled maintenance, have these units sent to us for a thorough inspection and cleaning.

As for the unit above, we cleaned and repaired the circuit board and coated it with Humiseal for an extra barrier to the moisture.

Replacement Units On A Shelf

Don’t be fooled into thinking replacement avionics units sitting on a shelf are safe from corrosion just because they are not installed on an aircraft. Humidity is another cause of corrosion, especially if they are stored in coastal areas.

For more information on our repair capabilities, download the Avionics Instruments Information & Capabilities Facts Sheet or conduct an online search of our repair and overhaul capabilities.

Latest Edition

Read more about it in the August 2016 issue of the Duncan Intelligence

Tags: Avionics & Instruments

One-Day Evaluation &  Three-Day Turntimes on TDR-94 Transponders

Posted by Duncan Download Blog on Thu, Aug 18, 2016 @ 04:19 PM

DA1604010328Mobile29.jpgThe Duncan Aviation avionics instrument shop is now able to provide operators with TDR-94/TDR-94D transponder service that includes same-day evaluation and three-day turntimes, with AOG options available when needed.

Our technicians, having serviced the -003 TDR-94 units for the last several years, have developed a very efficient repair process that will even allow a one-day repair, provided the following steps are taken by the operator:  

  1. Call Duncan Aviation Customer Account Reps to schedule the unit into shop. 800.562.6377 or 402.475.2611
  1. Provide ID tag information ahead of time. This gives us time to ensure we have parts on hand when the transponder arrives.
  1. Ship your unit to this address:

Duncan Aviation 

Shipping and Receiving

4001 N Park Rd

Lincoln, NE  68500

We offer the repair and service of these units at our main avionics instrument shop in Lincoln, Nebraska, as well as through our satellite avionics facilities located throughout the United States.

We are also able to modify earlier transponders to the -500-501 series, which will meet the ADS-B mandate for 2020 when the unit is properly installed and certified.

The Rockwell Collins TDR-94/TDR-94D transponder is a solid-state, crystal-controlled receiver/transmitter specifically designed for TCAS-II-equipped business aircraft.  We are authorized to repair and service transponders with the Rockwell Collins part numbers of 622-9352-002 through -008; -108; -207; -308-311; -408-411; -500-501 and 622-9210-002 through -008; -108; -207; -308-311; -408-411; -500-501.

Tags: Avionics & Instruments

Why Are You Waiting Weeks For An Offer on Your Surplus Aircraft Avionics?

Posted by Diane Heiserman on Tue, Jul 26, 2016 @ 09:00 AM

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501-1228-04: Lead Acid Emergency Power Supply

If you are waiting more than two weeks for an offer on your available aircraft avionics inventory, you are waiting too long. 

The business aviation industry is growing rapidly and the demand for good, serviceable avionics parts to support customers’ current and future needs is strong. So Duncan Aviation’s Parts & Rotables Sales has stepped up efforts and increased on-hand inventory of avionics parts for all makes of business aircraft, including modifications packages removed for avionics upgrades.

Every day, customers reach out to Avionics Acquisitions Manager, Jamie Blackman, and her team offering a list of inventory to purchase. Most lists average 20-50 part numbers, but can be as high as 5,000.

  • Aircraft inventory companies that purchase aircraft to part-out offer us avionics units, knowing our customer base will likely be able to use the inventory.
  • DOMs will sell their rotable pools if their aircraft is traded in for a larger or newer aircraft. These pools consist of good, serviceable units they no longer need. So they sell the units and then turn around and buy inventory for their new rotable needs.

“We have no limits on how large or small of a list we’ll buy,” says Jamie. “If a customer presents us with a list, we’ll take it all whether we have repair capabilities or not.” This makes it easier for the customer, she says, saving them the time it takes to go to multiple outlets to sell their inventory.

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501-1712-02: Emergency Power Supply 071-01519-0101: King Ant/RCVR/XMTR   622-1270-001: Collins Transponder

Duncan Aviation  Parts Search & Quote Request

Best Price First

But they won’t haggle on price and Jamie explains why, “We always offer our best price out of the gate, never low-balling or engaging in time-consuming negotiations. We won’t waste your valuable time exchanging emails or phone calls to come to pricing terms. By offering your the fairest price upfront, we save ourselves time and make you money.”

William Calgagni of the Calin Corporation explains why he selected Duncan Aviation to sell his avionics parts. “Out of the three companies I contacted, Duncan Aviation was the easiest to work with and the best fit for my needs, offering a competitive price.”

Jamie knows by offering the fairest price upfront the seller is more likely to come back again the next time they have additional units for sale. William agrees, “The next time I have any avionics units to sell, Duncan Aviation will be on the short list again.”

“We are more than happy to explain how we arrived at our offer,” explains Jamie. When a list is received, it is examined and compared to all of the historical data that has been collected by Duncan Aviation. Each Individual part number is researched to find sales history as well as repair capabilities and average repair costs. Even our own stock quantities are examined to determine the current number of units on hand. All of this information together provides the most accurate fair market value and is used to formulate the purchase offer extended to the customer.

Our offers are competitive and, in most cases, higher than others because we have more than 45,000 different repair manuals and a large team of avionics repair professionals. These in-house repair capabilities keep costs under control, allowing us to offer more money for the units. And our wide and active customer base ensures that we are able to maintain multiple units in our inventory.

Best Price Fast

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071-01550-0101: King Radar Antenna

Not only will you get our best offer out of the gate, you’ll have that offer within one to two business days of receiving the list. There is no waiting up to two weeks to hear back about an offer or to find out that most of the list is rejected. We have a proprietary computer program that compares individual part numbers to Duncan Aviation’s entire historical experience with each unit. With a click of a button, we are able to replicate the thoroughness of manual line-by-line research, but have results within a matter of a few hours.

Over the past three years, the Duncan Aviation Parts & Rotable Sales has added over $2.5 million in avionics inventory. And recently started an Avionics Purchasing Program to build an inventory of avionics units for which we don’t have repair capabilities. “The market demand for these newer systems is beginning to grow,” says Jamie. “Our customers need these units and we want to be able meet those needs by being their best source.”

WeBuyAvionics@DuncanAviation.com

If you have avionics inventory, whether it is one unit or thousands of piece parts, we will be the first to respond and with the best offer. When receiving your payment you have the option of cash, trade or putting credit on your account for future Duncan Aviation work, anywhere in the company.

Contact Duncan Aviation to sell your excess avionics inventory by emailing an Excel spreadsheet of your parts list, including part numbers to WeBuyAvionics@DuncanAviation.com. We are also interested in purchasing surplus inventories of airframe and engine accessory components.

Tags: Parts & Accessories, Avionics & Instruments

Why Are You Still Using Floppy Disks? Five Reasons to Upgrade to the DL-950

Posted by Duncan Download Blog on Thu, Jun 09, 2016 @ 01:00 PM

1_DL-950.jpgTechnology is amazing. Most pilots and flight planners use smart phones and iPads for everything from researching FBO stops to finding a great caterer. But several are still using floppy disks to update the on-aircraft navigation database. That’s right. Floppy disks.

If you fall in that category and use a Honeywell DL-900 data loader, there are five very good reasons to look at upgrading to the DL-950 or DL-1000.

  1. Floppy disk technology is just plain old. 
    • Many companies, including Honeywell, will no longer support these units after December 31, 2016. And since you need up-to-date navigation information, you need to look for a solution. In addition, the DL-900 is no longer covered by the Honeywell Avionics Protection Plan (HAPP). The DL-950 or DL-1000 is covered by HAPP.
  2. Loading is Faster. 
    • Floppy disk loading (which is going away) requires several floppy disks and takes quite a bit of time to load new approaches every month. With Honeywell’s USB loading, you can load new approaches into your navigation database in as little as 10 minutes. This process can eliminate loading errors commonly associated with floppy disks and can save you some serious time waiting on the ground during your next trip.
  3. Installation is Easy.
    • DL-900 operators don’t have to worry about a lengthy installation and extended downtime on their aircraft. Honeywell’s DL-950 and DL-1000 are designed as form-fit replacements and use the existing mount and connector. Duncan Aviation can complete this installation, including paperwork, in less than a day.
  4. Downloading Data is More Efficient. 
    • Every month when you receive an update from Honeywell, you no longer have to spend hours in front of a computer loading multiple floppy disks to get the data you need. In fact, with our latest technology, you can download from the convenience of your laptop and take your USB on-the-go – it’s that simple!
  5. Duncan Aviation’s Satellite Avionics Shops and Rapid Response Team offices are Located Across the United States. 
    • Duncan Aviation has experienced avionics technicians who can assist with the upgrade from any of the company’s locations, including its full-service locations in Battle Creek, Michigan; Lincoln, Nebraska; and Provo, Utah; at its 20+ avionics satellites; or through the company’s Rapid Response Team offices. For a complete list of Duncan Aviation locations, go here: http://www.da.aero/locations/index

For more information about the Honeywell DL-950 or DL-1000, visithttps://aerospace.honeywell.com/pages/update-your-navigation-database-before-the-dl-900-support-ends, feel free to contact me at +1 402.479.4202 or via email Matt.Nelson@DuncanAviation.com.

Note: Three of the five reasons above were picked up with permission from an earlier Honeywell article, which can be found here: https://aerospace.honeywell.com/en/news-listing/2016/march/three-reasons-to-upgrade-to-the-dl-950

Tags: Avionics & Instruments, Avionics Installation

Duncan Aviation Avionics/Instrument Techs Tackle “No Fault Found”

Posted by Diane Heiserman on Tue, May 17, 2016 @ 03:51 PM

NoFaultFound.jpgNo one in the aviation industry likes to see an instrument or piece of avionics equipment labeled as No Fault Found (NFF). So Duncan Aviation technicians take great care to tackle these head-on to find faults.

Equipment is labeled NFF when the squawk it is sent in for cannot be duplicated in the repair bench environment. Additionally, many problems with avionics equipment and instruments are intermittent; the equipment doesn’t fail outright, it just periodically stops performing as needed. That makes diagnosis even more difficult.

Brian Leffers, Manager of the Duncan Aviation Avionics/Instrument shop, estimates that between 10-25% of the components that Duncan Aviation receives are labeled NFF from a different shop.

So just how does Duncan Aviation tackle these diagnostic dilemmas?

EXPERIENCE SAVES MONEY

There are hundreds of years’ worth of experience among the technicians working on gyros, weather radar, antennas, autopilot equipment, and navigation/communications systems sent to Duncan Aviation. Brian believes that this experience is the main reason Duncan Aviation is known for its ability to resolve NFF problems.

Because Duncan Aviation technicians are assigned to dedicated stations and work all day, every day, on the same types of components and instruments, they become familiar with even the most uncommon problems and failures.

Randy Bauer has worked at Duncan Aviation for 28 years. As a Gyro Master Tech, Randy explains that a faulty gyro could cause wing rock. However, determining what’s wrong in a gyro isn’t that easy. “In the vertical gyro, wing rock may be caused by defective gimbal bearings, low liquid level, or free drift rates. And in rare instances, the directional gyro could cause the same wing rock discrepancy if it has defective gimbal bearings or if the free drift rates don’t conform to specifications.”

Instrument Master Technician Steve Joe, who has 30 years of experience, specializes in repair and overhaul of attitude indicators. Some of these indicators have a new replacement cost of up to $40,000, so repair is preferred. The motors used to drive the attitude and command displays in some attitude director indicator models have intermittent failures. If the motor fails just once every 300 cycles, that would prevent it from being acceptable for continued service. These parts are carefully inspected to minimize the chance of in-flight failures.

ENVIRONMENTAL TESTING


DSC_3080_01_Mobile.jpgDuncan Aviation’s Avionics and Instrument Shop uses chambers that simulate the temperature extremes equipment experiences in flight. For instance, a weather radar antenna in an aircraft’s nose cone may experience 100-degree temperature swings from ground to altitude. To duplicate and diagnose problems, Duncan’s chamber can re-create those extremes (-40C to +70C).

Randy explains that all gyros are subjected to temperature extremes: They go through a hot (oven: 200 degrees) and cold (freezer: 20 degrees) soak to simulate the real-life temperatures the gyro may experience during flight or on the ground.

In addition, the shop houses an altitude chamber to simulate the changes in altitude and pressure that equipment undergoes during flight. And a vibration simulation re-creates the shaking and shuddering of an aircraft under various flight conditions.

STATE-OF-THE-ART DIAGNOSTIC EQUIPMENT

Duncan Aviation also invests in the most current tooling and repair manuals. When Team Leader Barry Burkey works on autopilot instruments, he uses a Duncan-developed automated test set called Date-1B. Instead of spending eight hours standing and monitoring the diagnostic test on a faulty autopilot, he hooks the unit to a computer for testing. While the tests are running, he’s free to work on other units.

Developed by Duncan Aviation’s Research & Development experts, the test set performs diagnostics and produces an analysis that Barry and his team use to pinpoint the problem. A major benefit of this automation is that it allows technicians to repeat lengthy tests many times in an attempt to duplicate intermittent problems that would normally take days to find, making this not only more cost effective but creating a higher probability that the fault will be identified.

NARROW THE FIELD

Duncan Aviation also has four Avionics/Instrument Tech Reps who provide support for the Avionics/Instrument shop by speaking directly to customers troubleshooting problems. Brian says, “Parts may arrive with a tag that says, ‘broken’ or ‘doesn’t work’.” From that brief assessment, it’s very difficult for a technician to discern what’s wrong. Tech reps call the customer and talk through the problems he or she has been experiencing to help pinpoint the source of the malfunction.

“Sometimes,” Brian says, “we have a unit here to work on. But after talking with the customer, our techs realize that unit may not be the source of the problem. So troubleshooting with the customer is an important step that helps ensure the customer doesn’t waste money sending in the wrong boxes.”

Randy agrees. “If an aircraft is experiencing wing rock, we might suspect a faulty gyro. However, it might also result from the autopilot sending a faulty signal to the servo. If the customer simply sends in the gyro and says the problem was wing rock, we could work on that gyro for months and never diagnose a problem.”

UP TO THE CHALLENGE

Locating the true nature of problems with avionics and instrument equipment is not always easy. The technicians at Duncan Aviation go to great lengths using experience, knowledge, environmental and diagnostic testing equipment and sheer determination to find solutions to components problems and save customers time, money and frustration.

Tags: Avionics & Instruments

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