The U.S. aircraft register, updated daily
Special conditions · electric or hybrid design · engine

Special Conditions: General Electric Company, GE9X Engine Models; Endurance Test Special Conditions

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 November 15, 2017 for General Electric Company. System: electric propulsion.

What it applies to

Applicant
General Electric Company
Makes
General Electric
Models
—
Published
November 15, 2017
Effective
December 17, 2017
The FAA's document
On the FAA's site

The FAA's summary their words, unchanged

These special conditions are issued for the General Electric Company turbofan engine models GE9X-105B1A, -105B1A1, -105B1A2, - 105B1A3, -102B1A, -102B1A1, -102B1A2, -102B1A3, and -93B1A. In these special conditions, the engine models will be referred to as ``GE9X.'' The engines will have novel or unusual design features associated with the engine design. 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.