Revocation of Class E Airspace; Lake Providence, LA
This action removes Class E airspace extending upward from 700 feet above the surface at Byerley Airport, Lake Providence, LA. The decommissioning of the non-directional radio beacon (NDB) and cancellation of Standard Instrument Approach Procedures have made this action necessary for continued safety and management within the National Airspace System.
Amendment of Class E Airspace for the Following Minnesota Towns; Hutchinson, MN; Jackson, MN; Pipestone, MN; Two Harbors, MN; and Waseca, MN
This action modifies Class E airspace extending upward from 700 feet above the surface at Hutchinson Municipal Airport-Butler Field, Hutchinson, MN; Jackson Municipal Airport, Jackson, MN; Pipestone Municipal Airport, Pipestone, MN; Richard B. Helgeson Airport, Two Harbors, MN; and Waseca Municipal Airport, Waseca, MN. Decommissioning of the non-directional radio beacon (NDB), cancellation of NDB approaches, and implementation of area navigation (RNAV) procedures have made this action necessary for the safety and management of Instrument Flight Rules (IFR) operations at the above airports. This action also updates the geographic coordinates at Hutchinson Municipal-Butler Field, Jackson Municipal Airport, Pipestone Municipal Airport, and Richard B. Helgeson Airport, to coincide with the FAA's aeronautical database.
Airworthiness Directives; Airbus Airplanes
We are adopting a new airworthiness directive (AD) for certain Airbus Model A330-200, -200 Freighter and -300 series airplanes; and Model A340-200 and -300 series airplanes. This AD was prompted by reports of spurious terrain awareness warning system (TAWS) alerts during approach and takeoff for airplanes fitted with the terrain and traffic collision avoidance system with transponder (T3CAS) when the T3CAS is constantly powered ``ON'' for more than 149 hours. This AD requires repetitive on-ground power cycle of the T3CAS. We are issuing this AD to prevent spurious TAWS alerts (collision prediction and alerting (CPA)), or missing legitimate CPA, which could increase flight crew workload during critical landing or takeoff phases, and could possibly result in reduced control of the airplane.
Airworthiness Directives; Dassault Aviation Airplanes
We are superseding Airworthiness Directive (AD) 2011-10-01 for all Dassault Aviation Model FALCON 7X airplanes. AD 2011-10-01 required repetitive functional tests of the ram air turbine (RAT) heater, and repair if necessary. This new AD requires revision of the maintenance or inspection program to incorporate new maintenance requirements and airworthiness limitations. This AD was prompted by the need for new and more restrictive maintenance requirements and airworthiness limitations for airplane structures and systems. We are issuing this AD to prevent reduced structural integrity and reduced control of these airplanes due to the failure of system components.
Airworthiness Directives; The Boeing Company Airplanes
We are adopting a new airworthiness directive (AD) for certain The Boeing Company Model 747-100, 747-100B, 747-100B SUD, 747-200B, 747-200C, 747-200F, 747-300, 747-400, 747-400D, 747-400F, 747SR, and 747SP series airplanes. This AD was prompted by reports of fatigue cracks in the station 320 crown frame and in window post number 3. This AD requires repetitive inspections for cracks and missing fasteners of the station 320 crown frame, cracks in the web and flange surfaces of the forward segment of window post number 3, and missing fasteners and cracks of the window upper sill; post-modification inspections for cracks of the window upper sill; a one-time fastener rework; and related investigative and corrective actions if necessary. We are issuing this AD to detect and correct fatigue cracking and missing fasteners of the station 320 crown frame, cracking of the window post number 3, and cracking of the window upper sill, which could result in an in-flight decompression and a loss of structural integrity of the fuselage.
Airworthiness Directives; Airbus Airplanes
We are superseding Airworthiness Directive (AD) 2007-21-14 R1 for all Airbus Model A310 series airplanes. AD 2007-21-14 R1 required revising the Airworthiness Limitations Section of the Instructions for Continued Airworthiness to incorporate new limitations for fuel tank systems. This new AD requires revising the maintenance program or inspection program to incorporate revised fuel maintenance and inspection tasks. This AD was prompted by the issuance of more restrictive maintenance requirements and/or airworthiness limitations by the manufacturer. We are issuing this AD to prevent the potential of ignition sources inside fuel tanks, which, in combination with flammable fuel vapors caused by latent failures, alterations, repairs, or maintenance actions, could result in fuel tank explosions and consequent loss of the airplane.