Department of Transportation March 6, 2009 – Federal Register Recent Federal Regulation Documents
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Decision That Nonconforming 1997 and 1998 Left-Hand Drive and 1997 through 2001 Right-Hand Drive Jeep Cherokee Multipurpose Passenger Vehicles Are Eligible for Importation
This document announces a decision by NHTSA that nonconforming 1997 and 1998 left-hand drive (LHD) and 1997 through 2001 right-hand drive (RHD) Jeep Cherokee multipurpose passenger vehicles (MPVs) that were not originally manufactured to comply with all applicable Federal motor vehicle safety standards (FMVSS) are eligible for importation into the United States because (1) they are substantially similar to vehicles that were originally manufactured for sale in the United States and that were certified by their manufacturer as complying with the safety standards (the U.S.-certified version of the 1997 and 1998 LHD and 1997 through 2001 RHD Jeep Cherokee MPVs), and (2) they are capable of being readily altered to conform to the standards.
Airworthiness Directives; Boeing Model 737-600, -700, and -800 Series Airplanes
We are revising an earlier proposed airworthiness directive (AD) for certain Boeing Model 737-600, -700, and -800 series airplanes. The original NPRM would have required an inspection of the free flange of the lower stringers of the wing center section for drill starts, and applicable related investigative and corrective actions. The original NPRM resulted from drill starts being found on the free flange of the lower stringers of the wing center section during a quality assurance inspection at the final assembly plant. This action revises the original NPRM by expanding the inspection area to include the free flange, the vertical web, and the fillet radius between the vertical web and the free flange. We are proposing this supplemental NPRM to prevent cracks from propagating from drill starts in the free flange, vertical web, and radius between the free flange and vertical web of the lower stringers of the wing center section lower stringers, which could cause a loss of structural integrity of the wing center section and may result in a fuel leak.
Airworthiness Directives; Fokker Model F.28 Mark 0100 Airplanes
The FAA proposes to supersede an existing airworthiness directive (AD) that applies to certain Fokker Model F.28 Mark 0100 airplanes. The existing AD currently requires revisions to the airplane flight manual (AFM) to include procedures to prohibit use of reverse engine thrust power settings between idle and emergency maximum and to prohibit stabilized engine operation in a certain engine speed range on the ground. This proposed AD would continue to require revising the AFM to include certain procedures. This proposed AD would also require removing the normal maximum (second) detent for the reverse-thrust control. In addition, this proposed AD would require revising the AFM to prohibit use of reverse thrust in flight and to limit operation of Max Reverse thrust. This proposed AD results from issuance of mandatory continuing airworthiness information (MCAI) originated by an aviation authority of another country to identify and correct an unsafe condition on an aviation product. We are proposing this AD to prevent inadvertent operation in the prohibited stabilized engine speed range on the ground, which could result in uncontained engine fan blade failure due to high cycle fatigue cracking.
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