Special Conditions: Modified Boeing Model 727, 727-100, 727C, 727-100C, and 727-200 Series Airplanes; 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 1, 1993 for Comtran International. System: instruments and avionics.
What it applies to
- Applicant
- Comtran International
- Makes
- Boeing
- Models
- —
- Published
- September 1, 1993
- Effective
- August 16, 1993
- The FAA's document
- On the FAA's site
The FAA's summary their words, unchanged
These special conditions are issued for Boeing Model 727, 727-100, 727C, 727-100C, and 727-200 series airplanes modified by Comtran International, Inc. of San Antonio, Texas. The modification includes the installation of high-technology digital avionics systems or other electronic systems that perform critical or essential functions. The applicable type certification regulations do not contain adequate or appropriate safety standards for the protection of these systems from the effects of lightning and high-intensity radiated fields (HIRF). These special conditions provide the additional safety standards that the Administrator considers necessary to ensure that the critical and essential functions that these systems perform 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.