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Special conditions

Special Conditions: Boeing Model 777 Series Airplanes; Overhead Crew Rest Compartment Occupiable During Taxi, Take-off, and Landing

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 26, 2004 for Boeing. System: other and general.

What it applies to

Applicant
Boeing
Makes
Boeing
Models
—
Published
April 26, 2004
Effective
April 13, 2004
The FAA's document
On the FAA's site

The FAA's summary their words, unchanged

These special conditions are issued for Boeing Model 777 series airplanes. These airplanes will have novel or unusual design features because of the installation of an overhead crew rest compartment that will be occupiable during taxi, takeoff, and landing. The applicable airworthiness regulations do not contain adequate or appropriate safety standards for these design features. These special conditions contain the additional safety standards that the Administrator considers necessary to establish a level of safety equivalent to that established by the existing airworthiness standards.

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