by JOANN VISTA
Targeted News Service
WASHINGTON, July 25 -- The Federal Aviation Administration has issued a final special conditions for Airbus Model A350-900 airplanes. The final special conditions are effective on Aug. 25.
A Federal Register notice (Docket No. FAA-2013-0911) issued by Aircraft Certification Service Transport Airplane Directorate Manager Jeffrey E. Duven stated: "These airplanes will have a novel or unusual design feature associated with a lateral-trim function that deploys flaps asymmetrically for airplane lateral-trim control. This function replaces the traditional method of providing airplane lateral trim over a small range through flap and aileron mechanical rigging. 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."
For more information, contact Robert C. Jones, FAA, Propulsion and Mechanical Systems, ANM-112, Transport Airplane Directorate, Aircraft Certification Service, 1601 Lind Avenue SW, Renton, Washington; 425/227-1234, fax 425/227-1320.
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