Proposed Modification of Class D and Class E Airspace; Pueblo, CO
This action proposes to modify Class D airspace and the Class E airspace areas at Pueblo Memorial Airport, Pueblo, CO. Controlled airspace is necessary to accommodate aircraft using VHF Omni- Directional Radio Range/Distance Measuring Equipment (VOR/DME) standard instrument approach procedures at Pueblo Memorial Airport. The FAA is proposing this action to enhance the safety and management of Instrument Flight Rules (IFR) operations in the vicinity of the Pueblo Memorial Airport. This action also would make an adjustment to the geographic coordinates of the airport.
Amendment of Class E Airspace; Casper, WY
This action modifies Class E airspace areas at Casper, Natrona County International Airport, Casper, WY, to facilitate vectoring of Instrument Flight Rules (IFR) traffic from en route airspace to the airport. Decommissioning of the Muddy Mountain VOR Omnidirectional Range Tactical Air Navigation (VORTAC) has made reconfiguration necessary for the safety and management of aircraft operations at the airport.
Fifty Eighth Meeting: RTCA Special Committee 186, Automatic Dependent Surveillance-Broadcast (ADS-B)
The FAA is issuing this notice to advise the public of the fifty eighth meeting of the RTCA Special Committee 222, Inmarsat AMS(R)S.
Airworthiness Directives; The Boeing Company Airplanes
We are adopting a new airworthiness directive (AD) for certain The Boeing Company Model 737-200, -200C, -300, -400, and -500 series airplanes. This AD was prompted by reports of cracks in the skin and surrounding structure under the number 3 very high frequency (VHF) antenna on the lower external surface of the airplane at buttock line 0.0, aft of the main landing gear wheel well. This AD requires inspecting for cracking and corrosion under the number 3 VHF antenna, and corrective actions if necessary; and, for certain airplanes, replacing bonded skin panels with solid skin panels if not previously accomplished. This AD also provides an optional preventive modification (which would terminate the inspection requirements for certain airplanes). We are issuing this AD to detect and correct cracks and corrosion of the skin and surrounding structure under the number 3 VHF antenna, which could result in separation of the antenna from the airplane, and rapid depressurization of the airplane.
Airworthiness Directives; Rolls-Royce plc Turbofan Engines
We are superseding an existing airworthiness directive (AD) for all Rolls-Royce plc (RR) RB211-524 series turbofan engines. That AD currently requires removal and repair of certain thrust reverser units (TRUs) prior to reinstallation. This AD requires the same actions for an expanded population of TRUs and extends the compliance time for repairing certain TRUs. This AD was prompted by additional engineering evaluation of TRUs, as a result of a translating cowl gearbox stubshaft failure and subsequent repair. We are issuing this AD to prevent failure of the attachment rivets, which may result in release of the TRU from the engine.
Airworthiness Directives; Reims Aviation S.A. Airplanes
We are adopting a new airworthiness directive (AD) for Reims Aviation S.A. Model F406 airplanes. This AD results from mandatory continuing airworthiness information (MCAI) issued 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 improper material used in nose landing gear (NLG) attachment brackets could lead to failure of the NLG bracket with consequent damage to the airplane while landing. We are issuing this AD to require actions to address the unsafe condition on these products.