Special Conditions: Learjet Model 24/25 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 April 28, 2003 for Ljsc LTD.. System: instruments and avionics.
What it applies to
- Applicant
- Ljsc LTD.
- Makes
- Learjet
- Models
- —
- Published
- April 28, 2003
- Effective
- April 13, 2003
- The FAA's document
- On the FAA's site
The FAA's summary their words, unchanged
These special conditions are issued for the Learjet Model 24/ 25 series airplanes, as modified by LJSC Ltd. These airplanes will have novel and unusual design features when compared to the state of technology envisioned in the airworthiness standards for transport category airplanes. The modification incorporates the installation of dual IS&S air data display units (ADDU) and a single IS&S analog interface unit (AIU). The applicable airworthiness regulations do not contain adequate or appropriate safety standards for the protection of these systems 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 provided by the existing airworthiness standards.
Source: FAA special conditions (final) from the Dynamic Regulatory System; the Federal Register carries the same notices.