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Special conditions

Special Conditions: Raytheon Aircraft Company Model MU-300 and MU-300-10 Airplanes and Model 400 Airplanes; 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 December 20, 2004 for Beechjet Tech. System: instruments and avionics.

What it applies to

Applicant
Beechjet Tech
Makes
Raytheon
Models
—
Published
December 20, 2004
Effective
December 5, 2004
The FAA's document
On the FAA's site

The FAA's summary their words, unchanged

These special conditions are issued for Raytheon Aircraft Company Model MU-300 and MU-300-10 airplanes and Model 400 airplanes modified by Beechjet TECH. These modified airplanes will have a novel or unusual design feature when compared to the state of technology envisioned in the airworthiness standards for transport category airplanes. The modification incorporates installation of two Shadin ADC-6400 RVSM-capable air data computers that perform critical functions. The applicable airworthiness regulations do not contain adequate or appropriate safety standards for the protection of these systems from the effects of high-intensity radiated fields (HIRF). These special conditions contain the additional safety standards that the Administrator considers necessary to establish a level of safety equivalent to that established by the existing airworthiness standards.

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