May 18, 2006 – Federal Register Recent Federal Regulation Documents

The FAA is adopting a new airworthiness directive (AD) for certain Lycoming Engines (formerly Textron Lycoming) 360 and 540 series reciprocating engines with ECi connecting rods, part number (P/N) AEL11750, installed. The Airmotive Engineering Corp, Division of Engine Components Incorporated (ECi), holds the Parts Manufacturer Approval (PMA) for the affected parts, and markets the parts as ECi parts. This AD requires replacing certain lot and serial numbered connecting rods, P/N AEL11750, having forging part number AEL11488. This AD would also prohibit installing certain ECi connecting rods, P/N AEL11750, into any Lycoming 360 or 540 series reciprocating engines. This AD results from reports of connecting rods with excessive variation in circularity of the journal bores. We are issuing this AD to prevent fatigue failure of the connecting rod and a possible uncommanded shutdown of the engine.

The FHWA is issuing this notice to advise the public that an Environmental Impact Statement will be prepared for proposed transportation improvements in Davis County, Utah.

The Coast Guard proposes to create a temporary safety zone in the Wando River, Cooper River, and Charleston Harbor from Hobcaw Yacht Club to Charleston Harbor Marina along the coast of Mount Pleasant, SC, to approximately 150 yards offshore, during the Lowcountry Splash swimming event on June 24, 2006. A safety zone is necessary to prevent commercial or recreational boating traffic from interfering with swimmers on the racecourse. This rule provides for the safety of swimmers and vessels transiting the area.

This action makes a correction to 14 CFR part 183 by adding two section references that were inadvertently omitted from the final rule published in the Federal Register on October 13, 2005 (70 FR 59932).

These special conditions are issued to Innovative Solutions & Support (IS&S), 720 Pennsylvania Drive, Exton, PA 19341-1129, for a Supplemental Type Certificate for the Pilatus PC-12, PC-12/45, and PC- 12/47 airplanes. These airplanes will have novel and unusual design features when compared to the state of technology envisaged in the applicable airworthiness standards. These novel and unusual design features include the installation of two 12'' x 9'' Integrated Flat Panel Display (IFPD) Electronic Flight Instrument Systems (EFIS), manufactured by IS&S, and components associated with this display system. The applicable regulations do not contain adequate or appropriate airworthiness standards for the protection of these systems from the effects of high intensity radiated fields (HIRF). These special conditions contain the additional safety standards that the Administrator considers necessary to establish a level of safety equivalent to the airworthiness standards applicable to these airplanes.

The Federal Aviation Administration (FAA) announces its findings on the noise compatibility program submitted by the City of Vero Beach, Florida 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. These findings are made in recognition of the description of Federal and nonfederal responsibilities in Senate Report No. 96-52 (1980). On October 28, 2003, the FAA determined that the noise exposure maps submitted by the City of Vero Beach, Florida under part 150 were in compliance with applicable requirements. On April 28, 2006, the FAA approved the Vero Beach Municipal Airport noise compatibility program. Most of the recommendations of the program were approved.

Due to an adverse comment, EPA is withdrawing the March 22, 2006 direct final rule (see 71 FR 14393) to approve a PM10 State Implementation Plan (SIP) maintenance plan revision for the La Grande, Oregon nonattainment area and to redesignate the area from nonattattainment to attainment for PM10. In the March 22, 2006 direct final rule, we stated that if we received adverse comments by April 21, 2006, the direct final rule would be withdrawn and would not take effect. EPA subsequently received adverse comment on that direct final rule. EPA will address all comments received in a subsequent final action based upon the proposed action also published on March 22, 2006 (see 71 FR 14438). EPA will not institute a second comment period on this document.

The FAA is adopting a new airworthiness directive (AD) for certain Boeing Model 737-600, -700, -700C, -800, and -900 series airplanes. This AD requires replacing brackets that hold the P5 panel to the airplane structure, the standby compass bracket assembly, the generator drive and standby power module, and the air conditioning module. This AD also requires, among other actions, inspecting for wire length and for damage of the connectors and the wire bundles, and doing applicable corrective actions if necessary. This AD results from an electrical burning smell in the flight compartment. We are issuing this AD to prevent wire bundles from contacting the overhead dripshield panel and modules in the P5 overhead panel, which could result in electrical arcing and shorting of the electrical connector and consequent loss of several critical systems essential for safe flight.

This final rule revises the May 20, 2006 effective date of the diesel particulate matter (DPM) final concentration limit of 160 micrograms of total carbon (TC) per cubic meter of air (160TC [mu]g/m3) promulgated in the 2001 final rule ``Diesel Particulate Matter Exposure of Underground Metal and Nonmetal Miners,'' and published in the Federal Register on January 19, 2001 (66 FR 5706) and amended on September 19, 2005 (70 FR 55019). This final rule increases flexibility of compliance for mine operators by allowing staggered effective dates for implementation of the final DPM limit, phased-in over a two-year period, primarily based on feasibility issues which have surfaced since promulgation of the 2001 final rule. Furthermore this final rule establishes requirements for medical evaluation of miners required to wear respiratory protection and transfer of miners who are medically unable to wear a respirator; deletes the existing provision that restricts newer mines from applying for an extension of time in which to meet the final concentration limit; addresses technological and economic feasibility issues, and the costs and benefits of this rule.