May 2011 Edition

Digital vs. Analog Multimeters: Which One Should You Use?

The answer depends on what you’re testing. Most people prefer to use a digital multimeter if given the choice. In most cases, Accessory Tech Rep. Jerry Cable would agree. » Read More

Honeywell RM-850 RMU Replacement

Honeywell is offering an incentive for operators to replace the current RM-850 RMU with new RM-855 units at approximately 50% of their regular price through the end of 2011. » Read More

4 Paths to Gaining FAA PMA Authorization

Nearly 30 years ago, Duncan Aviation was given its first Parts Manufacturer Approval (PMA) Authorization by the FAA, allowing us to manufacture aviation-related parts intended for installation on an aircraft. » Read More

King Air: Oscillating Altimeter Needle

In recent weeks, Avionics Tech Rep. Larry Troyer has received several calls from King Air operators reporting Honeywell air data and altimeter erratic operation problems. » Read More

Citation: R-12 to R-134a Refrigerant Conversion

R-12 refrigerant is becoming scarce and costly. It is just a matter of time before you will have to convert your systems to R-134a. » Read More

About The Newsletter

This Duncan Intelligence Newsletter is a publication of Duncan Aviation, written by our technical experts. Please contact us with any questions, or if you have a topic that you would like to see discussed.

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