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Special conditions · aircraft

Special Conditions: The Boeing Company Model 777-300ER Series Airplanes; \nDynamic Test Requirements for Single-Occupant Oblique Seats With Pretensioner \nRestraint Systems

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 July 9, 2020 for Boeing, covering the 777-300ER Series. System: cabin, seats and restraints.

What it applies to

Applicant
Boeing
Makes
Boeing
Models
777-300ER Series
On this site
Boeing 777 358 registered
Published
July 9, 2020
Effective
August 9, 2020
The FAA's document
On the FAA's site

The FAA's summary their words, unchanged

These special conditions are issued for The Boeing Company (Boeing) Model 777-300ER series airplanes. These airplanes will have a novel or unusual design feature when compared to the state of technology envisioned in the airworthiness standards for transport category airplanes. This design feature is single-occupant, oblique seats equipped with pretensioner restraint systems. The applicable airworthiness regulations do not contain adequate or appropriate safety standards for this design feature. 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.