The U.S. aircraft register, updated daily
Special conditions

Special Conditions; Dormer 228-200 Airplanes With Electronic Flight Instrument Systems (EFIS)

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 25, 1988 for Aar Oklahoma. System: instruments and avionics.

What it applies to

Applicant
Aar Oklahoma
Makes
Dornier
Models
—
Published
April 25, 1988
Effective
April 25, 1988
The FAA's document
On the FAA's site

The FAA's summary their words, unchanged

These special conditions are being issued to become part of the type certification basis for the Dornier 228-200 Airplanes that incorporate an electronic flight instrument system (EFIS). These airplanes will have novel and unusual design features when compared to the state of technology envisaged in the airworthiness standards applicable to these airplanes when EFIS is installed. These novel and unusual design features include the use of a cathode-ray tube electronic flight instrument system for which the applicable regulations do not contain adequate or appropriate airworthiness standards. These special conditions contain the additional safety standards which the Administrator considers necessary to establish a level of safety equivalent to that provided by the applicable airworthiness standards.

Source: FAA special conditions (final) from the Dynamic Regulatory System; the Federal Register carries the same notices.