Special Conditions: Airbus, Model A350-900 Series Airplane; Crew Rest Compartments

These amended special conditions are issued for Airbus Model A350-900 series airplanes. Notice of proposed special conditions, request for comments, for crew rest compartments of the A350-900 were published on March 30, 2012 in the Federal Register [Docket No. FAA- 2012-0343; Notice No. 25-460-SC]. The comment period closed May 14, 2012. Comments were received. In response to an August 1, 2013 letter from Airbus, the wording of the special conditions was revised. The revised wording for special conditions 4 and 14 is now agreed. The revised amended special conditions wording is in italics. These airplanes will have novel or unusual design features associated with two separate Crew Rest Compartments: a Flight Crew Rest Compartment (FCRC) intended to be occupied by flight crew members only, and a Cabin Crew Rest Compartment (CCRC) intended to be occupied by cabin crew members. Both types of Crew Rest Compartments (CRC) are installed in the overhead area with access from the main deck. 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.