Federal Aviation Administration March 21, 2006 – Federal Register Recent Federal Regulation Documents
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Airworthiness Directives; Boeing Model 777 Airplanes
The FAA proposes to adopt a new airworthiness directive (AD) for certain Boeing Model 777 airplanes. This proposed AD would require a one-time inspection of the first bonding jumper aft of the bulkhead fitting to detect damage or failure and to determine the mechanical integrity of its electrical bonding path, and repair if necessary; measuring the bonding resistance between the fitting for the fuel feed tube and the front spar in the left and right main fuel tanks, and repairing the bonding if necessary; and applying additional sealant to completely cover the bulkhead fittings inside the fuel tanks. This proposed AD results from fuel system reviews conducted by the manufacturer. We are proposing this AD to prevent arcing or sparking during a lightning strike at the interface between the bulkhead fittings of the engine fuel feed tube and the front spar inside the fuel tank. This arcing or sparking could provide a potential ignition source inside the fuel tank, which, in combination with flammable fuel vapors, could result in fuel tank explosions and consequent loss of the airplane.
Airworthiness Directives; Gulfstream Aerospace Corporation Model G-159 Airplanes
The FAA is revising an earlier proposed airworthiness directive (AD), applicable to all Gulfstream Aerospace Corporation Model G-159 airplanes. The original NPRM would have required repetitive non-destructive testing inspections to detect corrosion of the skin of certain structural assemblies, and corrective action if necessary. The original NPRM also would have required x-ray and ultrasonic inspections to detect corrosion and cracking of the splicing of certain structural assemblies, and repair if necessary. The original NPRM resulted from reports that exfoliation corrosion had been found in the lower layer of the lower wing plank splices. This action revises the original NPRM by expanding the inspection areas to include the wing lower plank splices, ailerons, flaps, elevators, vertical and horizontal stabilizers, rudder, rudder trim tab, and aft lower fuselage from fuselage station (FS)559 to FS669. The actions specified by this new proposed AD are intended to detect and correct corrosion and cracking of the lower wing plank splices and spot-welded skins of certain structural assemblies, which could result in reduced controllability of the airplane. This action is intended to address the identified unsafe condition.
Reduction of Fuel Tank Flammability in Transport Category Airplanes
This action extends the comment period for an NPRM published on November 23, 2005. In the NPRM, the FAA proposed new rules that would require operators and manufacturers of transport category airplanes to take steps that, in combination with other required actions, should greatly reduce the chance of a catastrophic fuel tank explosion. The extension of the comment period is a result of requests from a number of entities to allow public comment on new information that has recently been placed in the public docket.
Aviation Rulemaking Advisory Committee; Transport Airplane and Engine Issue Area-New Task
The FAA assigned a new task to the Aviation Rulemaking Advisory Committee to develop a recommendation that will help the FAA establish standardized criteria and guidance for conducting airplane- level safety assessments of critical systems. This notice is to inform the public of this ARAC activity.
Proposed Advisory Circular 25.981-2A, Fuel Tank Flammability
This action extends the comment period for a notice of availability of proposed AC 25.981-2A, Fuel Tank Flammability, and request for comments published on November 28, 2005. In this Notice, the FAA announced the availability of and requested comments on a proposed AC which sets forth an acceptable means, but not the only means, of demonstrating compliance with the provisions of the airworthiness standards in a Notice of Proposed Rulemaking published on November 23, 2005. The comment period for this Notice closes on the same day as the comment period for the NPRM (March 23, 2006). The extension of the Notice's comment period is a result of an extension of the NPRM's comment period.
Standardization and Clarification of Application of 14 CFR Part 23, §§ 23.1301 and 23.1309, Regarding Environmental Qualification
This notice announces the issuance of a Federal Aviation Administration (FAA) policy. The policy standardizes and clarifies the FAA application of 14 CFR part 23, sections 23.1301 and 23.1309, Amendment 23-41 or later for environmental qualification. This notice is necessary to advise the public, especially manufacturers of normal, utility, and acrobatic category airplanes, and commuter category airplanes and their suppliers, that the FAA has adopted the policy.
Modification of the St. Louis Class B Airspace Area; MO
This action corrects a final rule published in the Federal Register on February 15, 2006 (71 FR 7848), Airspace Docket No. 03-AWA- 2, FAA Docket No. FAA-2005-22509. In that rule, inadvertent errors were made in the graphic depicting the modified St. Louis Class B airspace area. This action corrects those errors.
Notice of Intent To Rule on Request To Release Airport Land at Sedona Airport, Sedona, AZ
The Federal Aviation Administration (FAA) proposes to rule and invites public comment on the release of approximately 16 acres of airport property at Sedona Airport, Sedona, Arizona from the airport- use restrictions of conveyance deed dated October 31, 1996. The purpose of the release is to authorize leasing of the property at fair market value in order to permit the airport to earn revenue from non-aviation uses of the airport land.
Noise Exposure Map Notice
The Federal Aviation Administration (FAA) announces its determination that the noise exposure maps submitted by the Wayne County Airport Authority under the provisions of the Aviation Safety and Noise Abatement Act (Act), 49 U.S.C. 47501, et seq. and the Federal Aviation Regulations (FAR), 14 CFR part 150 (part 150) are in compliance with applicable requirements.
Modification of Class E Airspace; Gothenburg, Quinn Field, NE
This document confirms the effective date of the direct final rule which revises Class E airspace at Gothenburg, Quinn Field, NE.
FAA Approval of Noise Compatibility Program 14 CFR Part 150, Santa Barbara Airport, Santa Barbara, CA
The Federal Aviation Administration (FAA) announces its findings on the noise compatibility program submitted by Santa Barbara Airport 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 June 28, 2004, the FAA determined that the noise exposure maps submitted by Santa Barbara Airport under Part 150 were in compliance with applicable requirements. On January 27, 2006, the FAA approved the Santa Barbara Airport noise compatibility program. Some of the recommendations of the program were approved.
Public Notice for Waiver of Aeronautical Land-Use Assurance; Faribault Municipal Airport; Faribault Minnesota
The Federal Aviation Administration (FAA) is considering a proposal to authorize the release of a portion of the airport property. The City of Faribault, MN is proposing to release for sale 29.72 acres of existing airport land for the development of an Army Reserve and Minnesota National Guard Readiness Center. The acreage being released is not needed for aeronautical use as currently identified on the Airport Layout Plan. The acreage comprising this parcel was originally acquired with local funds in 1944 and 1945. The City of Faribault (Minnesota), as airport owner, has concluded that the subject airport is not needed for expansion of airport facilities. There are no impacts to the airport by allowing the airport to dispose of the property. The appraised value is $830,000 and the Airport will receive that amount. Approval does not constitute a commitment by the FAA to financially assist in the disposal of the subject airport property nor a determination of eligibility for grant-in-aid funding from the FAA. The disposition of proceeds from the disposal of the airport property will be in accordance with FAA's Policy and Procedures Concerning the Use of Airport Revenue, published in the Federal Register on February 16, 1999. In accordance with section 47107(h) of title 49, United States Code, this notice is required to be published in the Federal Register 30 days before modifying the land-use assurance that requires the property to be used for an aeronautical purpose.
Airworthiness Directives; General Electric Company Model CF6-80C2D1F Turbofan Engines
The FAA is adopting a new airworthiness directive (AD) for General Electric Company (GE) Model CF6-80C2D1F turbofan engines. This AD requires modifying the latching system of the fan reverser. This AD results from 13 reports of released thrust reverser hardware. We are issuing this AD to prevent release of the thrust reverser cascade on landing, which could result in runway debris and a possible hazard to other aircraft.
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