Notice of RTCA Government/Industry Air Traffic Management Advisory Committee. SUMMARY: The FAA is issuing this notice to advise the public of a meeting of RTCA Government/Industry Air Traffic Management Advisory Committee. DATES: The meeting will be held October 29, 2009, from 1 p.m. to 4 p.m. ADDRESSES: The meeting will be held at FAA Headquarters, 800 Independence Avenue, SW., Bessie Coleman Conference Center (2nd Floor), Washington, DC, 20591. FOR FURTHER INFORMATION CONTACT: RTCA Secretariat, 1828 L Street, NW, Suite 805, Washington, DC, 20036; telephone (202) 833-9339; fax (202) 833-9434; Web site http://www.rtca.org

Airworthiness Directives; Boeing Model 737-300, -400, and -500. Final rule; request for comments. SUMMARY: We are revising an existing airworthiness directive (AD) that applies to certain Boeing Model 737-300, -400, and -500 series airplanes. That AD currently requires repetitive high frequency eddy current inspections for cracking of the 1.04- inch nominal diameter wire penetration hole in the frame and frame reinforcement, between stringers S-20 and S-21, on both the left and right sides of the airplane, and related investigative and corrective actions if necessary. This new AD clarifies certain compliance requirements. This AD results from reports of cracking in the frame, or in the frame and frame reinforcement, common to the 1.04-inch nominal diameter wire penetration hole intended for wire routing. We are issuing this AD to detect and correct cracking in the fuselage frames and frame reinforcements, which could reduce the structural capability of the frames to sustain limit loads, and result in cracking in the fuselage skin and subsequent rapid depressurization of the airplane. DATES: This AD is effective September 23, 2009.

Airworthiness Directives; Boeing Model 707 Airplanes, and Model 720 and 720B. Final rule. SUMMARY: The FAA is superseding an existing airworthiness directive (AD), which applies to certain Boeing Model 707 airplanes, and Model 720 and 720B series airplanes. The existing AD currently requires repetitive detailed inspections to detect cracks and corrosion on any existing repairs and at certain body stations (STA) of the visible surfaces of the wing to body terminal fittings including the web, flanges, and ribs; and applicable related investigative and corrective actions. This new AD retains the requirements of the existing AD and requires repetitive ultrasonic inspections to detect any stress corrosion cracks within the outboard flange of the left and right body terminal fittings at STA 820, and related investigative and corrective actions if necessary. This AD also provides an optional terminating action for the repetitive inspections. This AD also adds two airplanes to the applicability. This AD results from reports of cracks found in the wing to body terminal fittings during routine inspections. We are issuing this AD to detect and correct cracks and corrosion in the body terminal fittings above and below the floor, which could cause loss of support for the wing and could adversely affect the structural integrity of the airplane. DATES: This AD becomes effective October 14, 2009.

Airworthiness Directives; Bombardier Model DHC-8-400. Final rule. SUMMARY: This 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: Four aircraft have experienced a dual AC [alternating current] generator shutdown, caused by a broken propeller de-ice bus bar which short-circuited with the backplate assembly. A short circuit can cause a dual AC generator shutdown that, particularly in conjunction with an engine failure in icing conditions, could result in reduced controllability of the aircraft. Reduced controllability of the airplane in certain operating conditions affects continued safe flight and landing. We are issuing this AD to require actions to correct the unsafe condition on these products. DATES: This AD becomes effective October 14, 2009.

Airworthiness Directives; ATR Model ATR42 and ATR72. Final rule; request for comments. SUMMARY: This 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: A recent event occurred during which the LH [left-hand] forward side glass window of an ATR 72-212 aeroplane blew out while performing a ground pressure test. The investigation revealed some anomalies on the forward side window at the level of the Z-bar on the windows external side and at the level of the inner retainer on the windows internal side. These anomalies are considered as precursors of this failure. An in-flight loss of a forward side window could have catastrophic consequences for the aeroplane and/or cause injuries to people on the ground. The loss of the forward side window while the aeroplane is on the ground with a positive differential cabin pressure could also cause injuries to people inside or around the aeroplane. This AD requires actions that are intended to address the unsafe condition described in the MCAI. DATES: This AD becomes effective September 24, 2009.

Airworthiness Directives; Agusta AB412 and AB412 EP Helicopters. Final rule; request for comments. SUMMARY: This AD results from mandatory continuing airworthiness information (MCAI) issued by the European Aviation Safety Agency (EASA), which is the Technical Agent for the Member States of the European Community. The MCAI establishes a life limit for certain rescue hoist cable assemblies and introduces the term ''hoist lift'' for determining cable life instead of the term ''hoist cycle.'' The MCAI also establishes a replacement time for each affected rescue hoist cable assembly (hoist cable assembly) for which the accumulated number of ''hoist cycles'' cannot be determined. The actions are intended to prevent failure of a hoist cable and inadvertent loss of a load. DATES: This AD becomes effective on September 21, 2009. We must receive comments on this AD by November 3, 2009.