Federal Aviation Administration September 1, 2016 – Federal Register Recent Federal Regulation Documents

These special conditions are issued for the Bombardier Aerospace Inc. (Bombardier) Model BD-700-2A12 and BD-700-2A13 airplanes. These airplanes will have a novel or unusual feature when compared to the state of technology envisioned in the airworthiness standards for transport-category airplanes. This design feature is a sidestick controller, designed to be operated with only one hand, in lieu of the conventional wheel or stick controls. 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.

The Federal Aviation Administration (FAA) announces its findings (Record of Approval) on the noise compatibility program submitted by the City of Boise, Idaho for the Boise Air Terminal (Gowen Field) under the provisions of 49 U.S.C. (the Aviation Safety and Noise Abatement Act, hereinafter referred to as ``the Act'') and 14 CFR part 150 (Part 150). On May 2, 2016, the FAA determined that the noise exposure maps submitted by the City of Boise for the Boise Air Terminal under Part 150 were in compliance with applicable requirements. On August 24, 2016 the FAA approved the Boise Airport Noise Compatibility Program. Seven of the 13 measures recommended in the noise compatibility plan were approved and six measures were disapproved for the purposes of Part 150. In addition, 22 measures were included in the noise compatibility plan that requested no FAA action as they were approved in a previous record of approval, were removed from consideration, or disapproved in a previous record of approval. These measures and FAA's associated determinations are summarized in the attachment to the Record of Approval.

The FAA is issuing this notice to advise the public of the First Meeting of the Drone Advisory Committee (DAC).

We are adopting a new airworthiness directive (AD) for PILATUS AIRCRAFT LTD. Models PC-12, PC-12/45, PC-12/47, and PC-12/47E airplanes installed with an affected engine mounting frame assembly. This AD results from mandatory continuing airworthiness information (MCAI) issued by an aviation authority of another country to identify and correct an unsafe condition on an aviation product. The MCAI describes the unsafe condition as longitudinal material separation on the internal surface of the engine mounting frame assembly tubes. We are issuing this AD to detect and correct this condition, which could lead to partial or complete failure of the structural joint and possibly result in in-flight detachment of the engine with consequent loss of control.

We are superseding Airworthiness Directive (AD) 2013-24-12 for all The Boeing Company Model 747-8 and 747-8F airplanes. AD 2013-24-12 required repetitive ultrasonic or dye penetrant inspections for cracking of the barrel nuts and bolts on each forward engine mount, and related investigative and corrective actions if necessary. This new AD retains the requirements of AD 2013-24-12 and also requires installing new barrel nuts at the forward engine mounts; or identifying the part number of the barrel nuts, inspecting affected barrel nuts for gaps of the strut bulkhead and forward engine mount, and doing related investigative and corrective actions if necessary. This new AD also removes airplanes from the applicability. This new AD also requires revising the maintenance or inspection program, as applicable, to include a new structurally significant item. This AD was prompted by our determination that it is necessary to mandate the installation of new barrel nuts or new inspections to adequately address the unsafe condition. We are issuing this AD to detect and correct cracked barrel nuts on a forward engine mount, which could result in reduced load capacity of the forward engine mount, separation of an engine under power from the airplane, and consequent loss of control of the airplane.