April 7, 2016 – Federal Register Recent Federal Regulation Documents

We are adopting a new airworthiness directive (AD) for certain GE Aviation Czech s.r.o. M601E-11 turboprop engines. This AD requires inspection of the engine power turbine (PT) disk and, if found damaged, its replacement with a part eligible for installation. This AD was prompted by discovery of damage to certain engine PT disks during engine shop visits. We are issuing this AD to prevent failure of the engine PT disk, which could result in release of high-energy debris, damage to the engine, and reduced control of the airplane.

We, the U.S. Fish and Wildlife Service (Service), determine threatened species status under the Endangered Species Act of 1973 (Act), as amended, for the Big Sandy crayfish (Cambarus callainus), a freshwater crustacean from Kentucky, Virginia, and West Virginia, and endangered status for the Guyandotte River crayfish (C. veteranus), a freshwater crustacean from West Virginia. This rule adds these species to the Federal List of Endangered and Threatened Wildlife.

The Comprehensive Environmental Response, Compensation, and Liability Act (``CERCLA'' or ``the Act''), as amended, requires that the National Oil and Hazardous Substances Pollution Contingency Plan (``NCP'') include a list of national priorities among the known releases or threatened releases of hazardous substances, pollutants or contaminants throughout the United States. The National Priorities List (``NPL'') constitutes this list. The NPL is intended primarily to guide the Environmental Protection Agency (``EPA'' or ``the agency'') in determining which sites warrant further investigation. These further investigations will allow the EPA to assess the nature and extent of public health and environmental risks associated with the site and to determine what CERCLA-financed remedial action(s), if any, may be appropriate. This rulemaking proposes to add eight sites to the General Superfund section of the NPL. This proposed rule also withdraws a previous proposal to add a site to the NPL.

We are superseding Airworthiness Directive (AD) 2013-26-08 for certain The Boeing Company Model 737-600, -700, -700C, -800, -900, and -900ER series airplanes. AD 2013-26-08 required inspecting the orientation of both sides of the coil cord connector keyways of the number 2 windows on the flight deck; re-clocking the connector keyways, if necessary; and replacing the coil cord assemblies on both number 2 windows on the flight deck. This new AD adds airplanes to the applicability. AD 2013-26-08 resulted from reports of arcing and smoke at the left number 2 window in the flight deck. This AD was prompted by a determination that additional airplanes are subject to the same identified unsafe condition. We are issuing this AD to prevent arcing, smoke, and fire in the flight deck, which could lead to injuries to or incapacitation of the flightcrew.

We, the U.S. Fish and Wildlife Service (Service), notify the public that, based on new information, we are making changes to our proposed rule of July 6, 2012, to list as endangered the northern subspecies of scarlet macaw (Ara macao cyanoptera) and the northern distinct vertebrate population segment (DPS) of the southern subspecies (A. m. macao). We are also reopening the comment period. Comments previously submitted will be considered and do not need to be resubmitted. However, we invite comments on the new information presented in this document relevant to our consideration of the changes described below. We encourage those who may have commented previously to submit additional comments, if appropriate, in light of this new information.