Department of Transportation August 1, 2007 – Federal Register Recent Federal Regulation Documents
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Nationwide Differential Global Positioning System (NDGPS) Program
The Research and Innovative Technology Administration (RITA), on behalf of the U.S. Department of Transportation (DOT), is assessing the current user needs and systems requirements of the inland (terrestrial) component of NDGPS. This assessment is in preparation for making a recommendation to the National Space-Based Positioning, Navigation and Timing (PNT) Executive Committee (https://www.pnt.gov) on the need to continue to operate the inland component of the NDGPS system, and to make a decision on funding the NDGPS. The assessment may recommend other funding sources for future maintenance or enhancement of NDGPS, or shared sponsorship with other Federal and non-Federal agencies and entities, including the private sector. If no transportation requirements or other federal user requirements are identified as a result of the needs assessment, and if there are no other Federal or other funding sources willing to sponsor or partner in sponsoring NDGPS, DOT would develop a decommissioning plan for NDGPS.
Notice of Request for Renewal of a Previously Approved Collection
In accordance with the Paperwork Reduction Act of 1995 (44 U.S.C. Chapter 35, as amended), this notice announces the U.S. Department of Transportation's (DOT) intention to request renewal of a previously approved information collection.
Airworthiness Directives; Boeing Model 757 Airplanes
The FAA is revising an earlier proposed airworthiness directive (AD) for all Boeing Model 757 airplanes. The original NPRM would have required revising the Airworthiness Limitations (AWLs) section of the Instructions for Continued Airworthiness by incorporating new limitations for fuel tank systems to satisfy Special Federal Aviation Regulation No. 88 requirements. The original NPRM also would have required the initial inspection of certain repetitive inspections specified in the AWLs to phase-in those inspections, and repair if necessary. The original NPRM resulted from a design review of the fuel tank systems. This action revises the original NPRM by aligning the compliance time for revising the AWLs section with the compliance date of the special maintenance program requirements, updating the listing of applicable airplane maintenance manuals in Appendix 1, and clarifying certain actions. We are proposing this supplemental NPRM to prevent the potential for ignition sources inside fuel tanks caused by latent failures, alterations, repairs, or maintenance actions, which, in combination with flammable fuel vapors, could result in a fuel tank explosion and consequent loss of the airplane.
Airworthiness Directives; EADS SOCATA Model TBM 700 Airplanes
We propose to adopt a new airworthiness directive (AD) for the products listed above. 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 MCAI describes the unsafe condition as:
Passenger Equipment Safety Standards; Front-End Strength of Cab Cars and Multiple-Unit Locomotives
FRA is proposing to further the safety of passenger train occupants by amending existing regulations to enhance structural strength requirements for the front end of cab cars and multiple-unit locomotives. These enhancements would include the addition of deformation and energy absorption requirements specified in revised American Public Transportation Association (APTA) standards for front- end collision posts and corner posts for this equipment. FRA is also proposing to make miscellaneous clarifying amendments to current regulations for the structural strength of passenger equipment.
Airworthiness Directives; Boeing Model 707 Airplanes and Model 720 and 720B Series Airplanes
The FAA proposes to adopt a new airworthiness directive (AD) for all Boeing Model 707 airplanes and Model 720 and 720B series airplanes. This proposed AD would require accomplishing an airplane survey to define the configuration of certain system installations, and repair of any discrepancy found. This proposed AD would also require modifying the fuel system by installing lightning protection for the fuel quantity indication system (FQIS), ground fault relays for the fuel boost pumps, and additional power relays for the center tank fuel pumps and uncommanded on-indication lights at the flight engineer's panel. This proposed AD results from fuel system reviews conducted by the manufacturer. We are proposing this AD to prevent certain failures of the fuel pumps or FQIS, which could result in a potential ignition source inside the fuel tank, which, in combination with flammable fuel vapors, could result in a fuel tank explosion and consequent loss of the airplane.
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