Airworthiness Directives; Airbus Model A300 B4-600, B4-600R, and F4-600R Series Airplanes, and Model C4-605R Variant F Airplanes (Collectively Called A300-600 Series Airplanes); and Model A310-300 Series Airplanes
The FAA proposes to adopt a new airworthiness directive (AD) for certain Airbus Model A300 B4-600, B4-600R, and F4-600R series airplanes, and Model C4-605R Variant F airplanes (collectively called A300-600 series airplanes); and Model A310-300 series airplanes. This proposed AD would require inspecting the pilot's and co-pilot's seats to determine if a certain actuator having a certain part number is installed, and corrective action if necessary. This proposed AD results from a production defect found in certain actuators during overhaul of the pilot's and co-pilot's seats. We are proposing this AD to prevent uncommanded movement of the pilot's or co-pilot's seat, which could result in interference with the operation of the airplane and consequent temporary loss of airplane control.
Airworthiness Directives; Airbus Model A321-100 and -200 Series Airplanes
The FAA proposes to adopt a new airworthiness directive (AD) for certain Airbus Model A321-100 and -200 series airplanes. This proposed AD would require replacing the crashworthiness pins on the side-stay of the main landing gear (MLG) with new pins having an increased internal notch diameter. This proposed AD results from testing on the side-stay crashworthiness pins on the MLG, which revealed that, in the case of an emergency landing, the crashworthiness pins installed will not ensure a correct MLG collapse. We are proposing this AD to prevent a punctured fuel tank, which could cause damage to the airplane or injury to passengers.
Airworthiness Directives; Aerospatiale Model ATR42-200, ATR42-300, and ATR42-320 Airplanes
The FAA proposes to supersede an existing airworthiness directive (AD) that applies to all Aerospatiale Model ATR-42-200, ATR 42-300, and ATR42-320 airplanes. The existing AD currently requires inspections to determine the proper installation of rivets in certain key holes and to detect cracks in the area of the key holes where rivets are missing; and correction of discrepancies. The existing AD also requires various inspections of the subject area for discrepancies, and corrective actions if necessary; and replacement of certain cargo door hinges with new hinges. For certain airplanes, the existing AD also requires replacement of friction plates, stop fittings, and bolts with new parts. This proposed AD would require additional corrective actions for certain airplanes. This proposed AD is prompted by discovery of cracks around key holes on certain fuselage frames where rivets were missing. We are proposing this AD to prevent fatigue cracks of the cargo door skin, certain frames, and entry door stop fittings and friction plates, which could result in reduced structural integrity of the airplane.
Policy on Bonded Joints and Structures-Technical Issues and Certification Considerations
This notice announces the issuance of a Federal Aviation Administration (FAA) policy for certification of bonded structures. This notice is necessary to advise the public, especially manufacturers of normal, and acrobatic category airplanes, and commuter category airplanes and their suppliers, that the FAA has adopted a policy on bonded joints and structures.
Amendment to Using Agency for Restricted Areas R-2510 A & B; El Centro, CA
This action changes the using agency of Restricted Areas R- 2510A & R-2510B, from ``CO, Yuma MCAS, AZ,'' to ``Commanding Officer, U.S. Navy Fleet Area Control and Surveillance Facility, San Diego, CA.'' The FAA is taking this action in response to a request from the United States Navy to reflect an administrative change of responsibility for the restricted areas. There are no changes to the boundaries; designated altitudes; time of designation; or activities conducted within the affected restricted areas.
Establishment of Domestic VOR Federal Airway V-19; OH
This action establishes Domestic Very High Frequency Omni- directional Range (VOR) Federal Airway V-19 northeast of the Cincinnati, OH, VOR/Tactical Air Navigation (VORTAC). The FAA is taking this action to reduce congestion on VOR Federal Airway V-5 between Columbus, OH, and Cincinnati, OH, and to enhance the management of aircraft operations over the Cincinnati, OH area.
Airworthiness Directives; General Electric Company CT7-5, -7, and -9 Series Turboprop Engines
The FAA is adopting a new airworthiness directive (AD) for General Electric Company (GE) CT7-5A2, -5A3, -7A, -7A1, -9B, -9B1, and -9B2 turboprop engines, with stage 2 turbine aft cooling plate, part number (P/N) 6064T07P01, 6064T07P02, 6064T07P05, or 6068T36P01 installed. This AD requires a onetime eddy current inspection (ECI) of certain P/N stage 2 turbine aft cooling plate boltholes. This AD results from reports of six stage 2 turbine aft cooling plates found cracked during inspection. We are issuing this AD to prevent stage 2 aft cooling plate separation, resulting in uncontained engine failure and damage to the airplane.