Special Conditions: Fokker Model F27 Mark 500 Airplane; Lightning and 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 September 8, 1991 for Flight Dynamics. System: instruments and avionics.
What it applies to
- Applicant
- Flight Dynamics
- Makes
- Fokker
- Models
- —
- Published
- September 8, 1991
- Effective
- October 8, 1991
- The FAA's document
- On the FAA's site
The FAA's summary their words, unchanged
These special conditions are issued for the Fokker Model F27 Mark 500 airplane modified by Flight Dynamics, lnc. This airplane is equipped with a high-technology digital avionics system, the Head-up Guidance System (HGS), that performs critical and essential functions. The applicable regulations do not contain adequate or appropriate safety standards for the protection of this system from the effects of lightning and high-intensity radiated fields (HIRF). These special conditions contain the additional safety standards that the Administrator considers necessary to ensure that the critical and essential functions that the HGS performs are maintained when the airplane is exposed to lightning and HIRF.
Source: FAA special conditions (final) from the Dynamic Regulatory System; the Federal Register carries the same notices.