Federal Aviation Administration March 23, 2009 – Federal Register Recent Federal Regulation Documents
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Airworthiness Directives; Rolls-Royce Deutschland Ltd & Co KG (RRD) BR700-715A1-30, BR700-715B1-30, and BR700-715C1-30 Turbofan Engines
We are adopting a new airworthiness directive (AD) for the products listed above. 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:
Airworthiness Directives; Bell Helicopter Textron Canada Model 427 Helicopters
We propose to adopt a new airworthiness directive (AD) for Bell Helicopter Textron Canada (BHTC) Model 427 helicopters. This proposed AD results from mandatory continuing airworthiness information (MCAI) originated by the aviation authority of Canada to identify and correct an unsafe condition on an aviation product. Transport Canada, the aviation authority of Canada, with which we have a bilateral agreement, states that it has been determined that the existing hardware connecting the vertical fin to the tail rotor gearbox needs to be upgraded, to prevent the vertical fin from becoming loose.
Airworthiness Directives; Agusta S.p.A. Model A109E, A109S, A119, and AW119MKII Helicopters
We propose to adopt a new airworthiness directive (AD) for Agusta S.p.A. (Agusta) Model A109E, A109S, A119, and AW119MKII helicopters. This proposed AD results from mandatory continuing airworthiness information (MCAI) originated by an aviation authority of another country to identify and correct an unsafe condition on an aviation product. The European Aviation Safety Agency (EASA), the Technical Agent for the aviation authority of Italy, with which we have a bilateral agreement, has issued an MCAI AD which states that two cases of cracks on a certain cargo hook lever (lever) have been reported by the manufacturer of the cargo hook. This lever is a critical structural component of the cargo hook, and a crack could result in inadvertent loss of the cargo hook load. The proposed AD
Airworthiness Directives; McDonnell Douglas Model MD-90-30 Airplanes
We propose to adopt a new airworthiness directive (AD) for all McDonnell Douglas Model MD-90-30 airplanes. This proposed AD would require repetitive inspections for cracks of the upper aft skin panels on the horizontal stabilizer, and related investigative and corrective actions if necessary. This proposed AD results from a report of cracks found in the aft skin panels on the upper right side of the horizontal stabilizer at the aft inboard corner. We are proposing this AD to detect and correct cracks in the fail-safe structure that may not be able to sustain limit load, which could result in the loss of overall structural integrity of the horizontal stabilizer.
Airworthiness Directives; Boeing Model 737-600, -700, -700C, -800, and -900 Series Airplanes
We are revising an earlier proposed airworthiness directive (AD) for certain Boeing Model 737-600, -700, -700C, -800 and -900 series airplanes. The original NPRM would have required sealing the fasteners on the front and rear spars inside the main fuel tank and on the lower panel of the center fuel tank, inspecting the wire bundle support installation in the equipment cooling system bays to identify the type of clamp installed and determine whether the Teflon sleeve is installed, and doing related corrective actions if necessary. We subsequently issued a supplemental NPRM to revise the compliance time for the corrective actions specified in the original NPRM. This action resulted from a design review of fuel tank systems. This second supplemental revises the original NPRM by clarifying the applicability of certain actions for certain airplanes. We are proposing this second supplemental NPRM to prevent arcing at certain fuel tank fasteners in the event of a lightning strike or fault current event, which, in combination with flammable fuel vapors, could result in a fuel tank explosion and consequent loss of the airplane.
Waterbury-Oxford Airport, Oxford, CT; FAA Approval of Noise Compatibility Program
The Federal Aviation Administration (FAA) announces its findings on the noise compatibility program submitted by the Connecticut Department of Transportation under the provisions of Title I of the Aviation Safety and Noise Abatement Act of 1979 (Pub. L. 96- 193) and 14 CFR Part 150. These findings are made in recognition of the description of Federal and non-federal responsibilities in Senate Report No. 96-52 (1980). On November 6, 2008, the FAA determined that the noise exposure maps submitted by the Connecticut Department of Transportation under Part 150 were in compliance with applicable requirements. On January 14, 2009, the Manager, Airports Division, New England Region, approved the Waterbury-Oxford Airport noise compatibility program. All 12 of the proposed program elements were approved.
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