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Special conditions · aircraft

Special Conditions: Boeing Model 747SP Series; 747-100 Series; and 747-200B, -200C, and -200F Series Airplanes; High-Intensity 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 17, 2003 for Design, J.R.G.. System: instruments and avionics.

What it applies to

Applicant
Design, J.R.G.
Makes
Boeing
Models
—
Published
June 17, 2003
Effective
June 9, 2003
The FAA's document
On the FAA's site

The FAA's summary their words, unchanged

These special conditions are issued for Boeing Model 747SP series; 747-100 series; and 747-200B, -200C, and -200F series airplanes. These 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 airplane modification includes the installation of an Electronic Flight Instrument System (EFIS), which performs critical functions. The applicable airworthiness regulations do not contain adequate or appropriate safety standards for the protection of this system 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.