Federal Aviation Administration May 21, 2012 – Federal Register Recent Federal Regulation Documents

We propose to adopt a new airworthiness directive (AD) for all BAE SYSTEMS (Operations) Limited Model 4101 airplanes. This proposed AD was prompted by reports that the fire extinguisher in the toilet vanity unit needs to be mounted vertically rather than horizontally. This proposed AD would require inspecting to determine if a certain fire extinguisher bottle is installed, and repositioning the affected fire extinguisher bottle to the vertical position. We are proposing this AD to detect and correct the orientation of the fire extinguisher bottle in the toilet vanity unit to the vertical position, which if not corrected, could result in a toilet waste bin fire spreading, and consequent damage to the airplane and injury to its occupants.

This action amends Class E airspace at Baraboo, WI. Additional controlled airspace is necessary to accommodate new Area Navigation (RNAV) Standard Instrument Approach Procedures at Reedsburg Municipal Airport. The geographic coordinates of the airport also are adjusted. The FAA is taking this action to enhance the safety and management of Instrument Flight Rule (IFR) operations at the airport. The Airspace Docket No. is corrected to 11-AGL-29.

This action amends Class E airspace for Springhill, LA. Decommissioning of the Springhill non-directional beacon (NDB) at Springhill Airport has made this action necessary to enhance the safety and management of Instrument Flight Rule (IFR) operations at the airport. The geographic coordinates of the airport also are adjusted.

This action proposes to amend Class D airspace at Sault Ste Marie, ON. Additional controlled airspace is necessary to coincide with the Canadian control zone over Sault Ste Marie Airport. The FAA is taking this action to enhance the safety and management of Instrument Flight Rules (IFR) operations at the airport.

This action proposes to amend Class E airspace at Lemmon, SD. Additional controlled airspace is necessary to accommodate new Standard Instrument Approach Procedures (SIAP) at Lemmon Municipal Airport. The FAA is taking this action to enhance the safety and management of Instrument Flight Rules (IFR) operations for SIAPs at the airport. Geographic coordinates of the airport also would be updated.

This action proposes to amend Class E airspace at Sweetwater, TX. Additional controlled airspace is necessary to accommodate new Standard Instrument Approach Procedures (SIAP) at Avenger Field Airport. The FAA is taking this action to enhance the safety and management of Instrument Flight Rules (IFR) operations for SIAPs at the airport. Geographic coordinates would also be updated, as well as the airport name.

This action establishes Class E airspace at Branson West, MO, to accommodate new Area Navigation (RNAV) Standard Instrument Approach Procedures at Branson West Municipal-Emerson Field Airport. The FAA is taking this action to enhance the safety and management of Instrument Flight Rule (IFR) operations at the airport.

This action amends Class E airspace at New Philadelphia, OH. Additional controlled airspace is necessary to accommodate new Area Navigation (RNAV) Standard Instrument Approach Procedures at Harry Clever Field. The geographic coordinates of the airport also are updated. The FAA is taking this action to enhance the safety and management of Instrument Flight Rule (IFR) operations at the airport.

This action amends Class E airspace at Leesville, LA. Additional controlled airspace is necessary to accommodate new Area Navigation (RNAV) Standard Instrument Approach Procedures at Leesville Airport. The FAA is taking this action to enhance the safety and management of Instrument Flight Rule (IFR) operations at the airport.

The FAA is issuing this notice to advise the public of the Ninth meeting of RTCA Special Committee 222, Inmarsat Aeronautical Mobile Satellite (Route) Services.

This action would amend the regulations for repair stations by revising the system of ratings, the repair station certification requirements, and the regulations on repair stations providing maintenance for air carriers. This action is necessary because many portions of the existing repair station regulations do not reflect current repair station aircraft maintenance and business practices, or advances in aircraft technology. These changes would modernize the regulations to keep pace with current industry standards and practices.

We are adopting a new airworthiness directive (AD) for all Fokker Services B.V. Model F.28 Mark 0070 and 0100 airplanes. This AD was prompted by an in-flight failure of the hydraulic control panel, which resulted in the absence of pressure and quantity indication of the hydraulic system and accompanying alerts for ``hydraulic system 1 low quantity'' and ``hydraulic system 2 low quantity.'' This AD requires implementing new abnormal procedures for hydraulics in the airplane flight manual (AFM). We are issuing this AD to prevent loss of control of the airplane due to incorrect hydraulic system failure information being provided to the flightcrew, followed by application of inappropriate procedures.

We are superseding an existing airworthiness directive (AD) for certain The Boeing Company Model 747 series airplanes. That AD currently requires repetitive inspections for cracks of the fuselage skin lap splice between body station (BS) 400 and BS 520 at stringers S-6L and S-6R, and repair if necessary. This new AD shortens the interval for the repetitive inspections, requires modification for certain airplanes, and requires certain post-modification inspections for other airplanes. This AD was prompted by reports of multiple adjacent cracks on an airplane, and a recent fleet-wide evaluation of widespread fatigue damage of skin lap joints, which indicated the need for revised procedures and reduced compliance times. We are issuing this AD to detect and correct cracking of the fuselage skin lap splice between BS 400 and BS 520 at stringers S-6L and S-6R, which could result in sudden loss of cabin pressurization and the inability of the fuselage to withstand fail-safe loads.