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Special Conditions; Duncan Aviation Inc., EFIS on the Raytheon 300 King Air; Protection of Systems for High Intensity Radiated Fields (HIRF)

Special conditions are rules the FAA writes for one design when the standard certification rules do not cover something new about it. These were published June 21, 2005 for Duncan Aviation INC.. System: instruments and avionics.

What it applies to

Applicant
Duncan Aviation INC.
Makes
Raytheon
Models
—
Published
June 21, 2005
Effective
June 14, 2005
The FAA's document
On the FAA's site

The FAA's summary their words, unchanged

These special conditions are issued to Duncan Aviation Inc., 15745 S Airport Rd Battle Creek, MI 49015, for a Supplemental Type Certificate for the Raytheon 300 King Air. This airplane will have novel and unusual design features when compared to the state of technology envisaged in the applicable airworthiness standards. These novel and unusual design features include the installation of an electronic flight instrument system (EFIS). The EFIS consists of the Universal Avionics, Inc. EFI-890R system for which the applicable regulations do not contain adequate or appropriate airworthiness standards for the protection of these systems from the effects of high intensity radiated fields (HIRF). The installation includes three EFI- 890R Flat Panel Displays (two Primary Flight Displays Pilot/Copilot and one Navigational Displays Pilot), and supporting equipment. These special conditions contain the additional safety standards that the Administrator considers necessary to establish alevel of safety equivalent to the airworthiness standards applicable to these airplanes.

Source: FAA special conditions (final) from the Dynamic Regulatory System; the Federal Register carries the same notices.