Special Conditions: Modified Cessna Model 500 Series 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 July 6, 1993 for Duncan Aviation INC.. System: instruments and avionics.
What it applies to
- Applicant
- Duncan Aviation INC.
- Makes
- Cessna
- Models
- —
- Published
- July 6, 1993
- Effective
- May 9, 1993
- The FAA's document
- On the FAA's site
The FAA's summary their words, unchanged
These special conditions are issued for Cessna Model 500 series airplanes modified by Duncan Aviation, Inn, of Lincoln, Nebraska. These airplanes are equipped with digital electronic flight instrument systems (EFIS) that perform critical functions. The applicable regulations do not contain adequate or appropriate safety standards for the protection of the EFIS from the effects of high-intensity radiated fields (HIRF). These special conditions provide the additional safety standards that the Administrator considers necessary to ensure that the critical functions performed by these systems are maintained when the airplane is exposed to HIRF.
Source: FAA special conditions (final) from the Dynamic Regulatory System; the Federal Register carries the same notices.