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Special conditions

Special Condition: Eurocopter Deutschland Model MBB-BK 117 A-1, A-3, A-4, B-1, B-2, and C-1 Helicopters, Electronic Flight Instrument System

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 25, 1996 for American Eurocopter. System: instruments and avionics.

What it applies to

Applicant
American Eurocopter
Makes
Eurocopter
Models
—
Published
August 25, 1996
Effective
August 25, 1996
The FAA's document
On the FAA's site

The FAA's summary their words, unchanged

This special condition is issued for the Eurocopter Deutschland Models MBB-BK 117 A-1, A-3, A-4, B-1, B-2, and C-1 helicopters. These helicopters will have a novel or unusual design feature associated with the Electronic Flight Instrument System. The applicable airworthiness regulations do not contain adequate or appropriate safety standards for the protection of these critical function systems from the effects of external high intensity radiated fields (HIRF). This special condition contains additional safety standards that 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.