Federal Aviation Administration July 29, 2016 – Federal Register Recent Federal Regulation Documents

This action proposes to amend Class E en route airspace around the Iron Mountain VHF omnidirectional range/distance measuring equipment, Iron Mountain, MI. This action would add additional airspace to facilitate the vectoring of Instrument Flight Rules (IFR) aircraft under control of the Minneapolis Air Route Traffic Control Center (ARTCC) in the Great Lakes area located north and northwest of the Iron Mountain, MI, VHF Omnidirectional Range/Distance Measuring Equipment (VOR/DME) navigation aid. This proposed action would enhance the safety and management of aircraft operations within the National Airspace System (NAS).

We are adopting a new airworthiness directive (AD) for all The Boeing Company Model 757-200 and -200CB series airplanes. This AD was prompted by an evaluation by the design approval holder (DAH) indicating that the lap splices at stringer S-14R, lower fastener row, are subject to widespread fatigue damage (WFD). This AD requires external dual frequency eddy current (DFEC) or internal high frequency eddy current (HFEC) inspections of the lap splice, inner skin fasteners, at stringer S-14R, station (STA) 440 through STA 540, and corrective action if necessary. We are issuing this AD to detect and correct cracking of the fuselage skin lap splice. Such cracking could result in reduced structural integrity of the airplane.

These special conditions are issued for the Embraer S.A. (Embraer) Model EMB-545 and EMB-550 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 feature is an airbag system designed to limit the axial rotation of the upper leg on single-place and multiple-place side-facing seats. 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.