Special conditions; McDonnell Douglas Model MD-90 Series Airplanes; High Intensity Radiated Fields (HIRF) Protection
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 August 4, 1992 for Mcdonnell Douglas Corporation. System: engine.
What it applies to
- Applicant
- Mcdonnell Douglas Corporation
- Makes
- McDonnell Douglas
- Models
- —
- Published
- August 4, 1992
- Effective
- September 6, 1992
- The FAA's document
- On the FAA's site
The FAA's summary their words, unchanged
This special condition is issued for the McDonnell Douglas Model MD-90 series airplanes. These airplanes are equipped with high technology digital avionic systems which will perform critical functions. Examples of these systems are the Full Authority Digital Engine Control (FADEC) system and the Inertial Reference System (IRS). The applicable regulations do not contain adequate or appropriate safety standards for the protection of these systems from the effects of High Intensity Radiated Fields. This special condition contains an additional safety standard which the Administrator considers necessary to ensure that the critical functions that these systems perform are maintained when these airplanes are exposed to HIRF.
Source: FAA special conditions (final) from the Dynamic Regulatory System; the Federal Register carries the same notices.