Duncan Aviation Awarded “Multiple Aircraft Type” STC for RAAS Certification with Optional RAAS “Inhibit” Button

November, 2004

LINCOLN, NEB. — Duncan Aviation has been awarded a “multiple aircraft type” STC certification for Honeywell’s Runway Awareness and Advisory System (RAAS) system that allows Duncan Aviation to install Honeywell’s RAAS system on aircraft equipped with a Honeywell’s Mark V or Mark VII EGPWS systems. This STC includes the option for an “inhibit” annunciator switch that allows flight crews to mute RAAS warnings for 30, 60 or 90 seconds. When the customer-specified time-delay expires, the RAAS system automatically resumes issuing audible warnings. Duncan Aviation was the first to perform the RAAS installation and was awarded STC certification on a Gulfstream GIV.

Under the “multiple” certification, aircraft types are easily added to the STC by inserting the new aircraft type into the Aircraft Model List (AML). The STC documents are FAA-approved by Duncan Aviation by a Memorandum of Agreement that greatly reduces the time requred for additional certification approvals.

“We are excited to hold the blanket RAAS certification,” says John Slieter, Vice President of Duncan Aviation Avionics Modifications Sales. “We believe the safety and situational awareness gains resulting from RAAS are something no flight crew should be without.”

“The RAAS inhibit feature is one many flight crews have requested and we are pleased to be the first to offer it,” says Steve Elofson, Duncan Aviation salesperson. “This single button inhibit removes reservations many flight crews have had about adding the safety of RAAS to their cockpit.”

Honeywell’s (RAAS) provides improved situational awareness to help lower the probability of runway incursions by providing timely aural advisories to the flight crew during taxi, takeoff, final approach, landing and rollout. RAAS is a software (and wiring change depending on original installation) upgrade to existing Mk V and Mk VII EGPWS computers. Using GPS data, RAAS issues advisories based on aircraft position when compared to airport locations stored in the EGPWS Runway Database.

Duncan Aviation is an aircraft service provider with 1,800 employees supporting the aviation needs of government and business operators and other service providers. These services include airframe, engine, avionics installations, interior and paint completions/modifications, avionics/instrument and accessory/propeller repair/overhaul and parts support. Complete service facilities are located in Lincoln, Neb., and Battle Creek, Mich. Additional locations include 21 satellite avionics facilities located throughout the United States, 20 government C-23 contract locations, a line service/regional support operation in Kalamazoo, Mich., and Lincoln-based AVPAC, a division that sells and consigns general aviation parts to aircraft operators and service organizations worldwide.

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