Department of Transportation May 29, 2012 – Federal Register Recent Federal Regulation Documents

We are adopting a new airworthiness directive (AD) for all Gulfstream Aerospace Corporation Model G-1159, G-1159A, and G-1159B airplanes. This AD requires, for certain airplanes, a measurement to determine the clearance (gap) of the exposed rounded portion of the doubler and clothespin fitting at the wing-to-fuselage attachment, and repair if necessary. This AD also requires, for certain other airplanes, determining if a certain aircraft service change has been incorporated, and for affected airplanes, a measurement to determine the clearance (gap) of the exposed rounded portion of the doubler and clothespin fitting at the wing-to-fuselage attachment, and repair if necessary. This AD was prompted by a report of an improper structural modification that had excessive gaps in the wing-to-fuselage attachment fittings. We are issuing this AD to detect and correct excessive gaps in the wing-to-fuselage attachment fittings, which could result in reduced structural integrity at the wing-to-fuselage attachment and consequent separation of the wing from the airplane.

This action proposes to establish Class E airspace at Chenega Bay Airport, Chenega Bay, AK, to accommodate aircraft using new Area Navigation (RNAV) Global Positioning System (GPS) standard instrument approach procedures at Chenega Bay Airport, Chenega Bay, AK. The FAA is proposing this action to enhance the safety and management of aircraft operations at the airport.

The Pipeline and Hazardous Materials Safety Administration (PHMSA) is considering amendments to the Hazardous Materials Regulations (HMR) to revise certain requirements applicable to the manufacture, use, and requalification of DOT specification cylinders. PHMSA is taking this action in response to petitions for rulemaking submitted by the regulated community and a review of the regulations applicable to compressed gas cylinders. PHMSA is not proposing specific amendments to the HMR; rather, we are seeking comment on the issues discussed in the ANPRM. While this ANPRM focuses on specific petitions for rulemaking and special permits, we will accept comments on the HMR applicable to compressed gas cylinders. These comments will be combined with a retrospective review of existing requirements aimed to modify, streamline, expand, or repeal existing rules that are outmoded, ineffective, insufficient, or excessively burdensome.