Damage Tolerance Data for Repairs and Alterations
This action extends the comment period for an NPRM that was published on April 21, 2006. In that document, the FAA proposed requirements for holders of design approvals to make available to operators damage tolerance data for repairs and alterations to fatigue critical structure. This extension is a result of requests from the Air Transport Association of America, Inc. (ATA), Airbus, Boeing Commercial Airplanes, Cargo Airline Association (CAA), and National Air Carrier Association, Inc. (NACA) to extend the comment period to the proposal.
Widespread Fatigue Damage
This action extends the comment period for an NPRM that was published on April 18, 2006. In that document, the FAA proposed to require that design approval holders establish operational limits for transport category airplanes in order to prevent widespread fatigue damage in those airplanes. This extension is a result of requests from the Air Transport Association of America, Inc. (ATA), Airbus, Boeing Commercial Airplanes, Cargo Airline Association (CAA), National Air Carrier Association, Inc. (NACA), and Lynden Air Cargo to extend the comment period for the proposal.
Enhanced Airworthiness Program for Airplane Systems/Fuel Tank Safety (EAPAS/FTS)
On October 6, 2005, the FAA published the ``Enhanced Airworthiness Program for Airplane Systems/Fuel Tank Safety (EAPAS/ FTS)'' proposed rule. This proposal includes a discussion about our intent to coordinate the Instructions for Continued Airworthiness (ICA) for fuel tank system and electrical wiring interconnection systems (EWIS) to avoid redundancies in those ICA. It also discusses our intent to align the compliance dates for operators to include those ICA in their maintenance programs. The purpose of this document is to advise industry that while we still intend to avoid redundancies in the fuel tank system and EWIS ICA, it is no longer practical to align the compliance dates to incorporate those ICA into operator maintenance programs. As a result, the December 16, 2008 compliance date in the fuel tank safety operational rules remains firm, and industry should proceed with the necessary plans to meet this date.
Disqualification for Airman and Airman Medical Certificate Holders Based on Alcohol Violations or Refusals to Submit to Drug and Alcohol Testing; Correction
This document makes a correction to the final rule published in the Federal Register on June 21, 2006 (71 FR 35760). That rule changed the airman medical certification standards to disqualify an airman based on an alcohol test result of 0.04 or greater breath alcohol concentration (BAC) or a refusal to take a drug or alcohol test required by the Department of Transportation (DOT) or a DOT agency.
Notice of Opportunity for Public Comment on Grant Acquired Property Release at Concord Regional Airport, Concord, NC
Under the provisions of Title 49, U.S.C. Section 47153(c), notice is being given that the FAA is considering a request from the City of Concord to waive the requirement that approximately 7.30 acres of airport property, located at the Concord Regional Airport, be used for aeronautical purposes.
Airworthiness Directives; Airbus Model A300 F4-600R Series Airplanes and Model A300 C4-605R Variant F Airplanes
The FAA is adopting a new airworthiness directive (AD) for certain Airbus Model A300 F4-600R series airplanes and Model A300 C4- 605R Variant F airplanes. This AD requires modifying certain structure in the fuselage zone at the lavatory venturi installation in the nose section, and performing a related investigative action and corrective action if necessary. This AD results from an analysis that revealed that airplanes equipped with Airbus Modification 08909 had a concentration of loads higher than expected in the fuselage zone (high stress) at the lavatory venturi installation in the nose section, which could be the origin of cracks that developed in the fuselage skin and propagated from the edge of the air vent hole. We are issuing this AD to prevent fatigue cracking of the fuselage skin, which could result in loss of the structural integrity of the fuselage and consequent rapid depressurization of the airplane.
Airworthiness Directives; Saab Model SAAB-Fairchild SF340A (SAAB/SF340A) and SAAB 340B Airplanes
The FAA proposes to supersede an existing airworthiness directive (AD) that applies to certain Model SAAB-Fairchild SF340A and SAAB 340B airplanes. The existing AD currently requires repetitive inspections for wear of the brushes and leads and for loose rivets of the direct current (DC) starter generator, and related investigative/ corrective actions if necessary. This proposed AD would require installing new improved generator control units (GCUs). Installing the GCUs would end the repetitive inspection requirements of the existing AD. This proposed AD results from reports of premature failures of the DC starter generator prior to scheduled overhaul. We are proposing this AD to prevent failure of the starter generator, which could cause a low voltage situation in flight and result in increased pilot workload and reduced redundancy of the electrical powered systems.
Airworthiness Directives; Boeing Model 767 Airplanes
The FAA is revising an earlier proposed airworthiness directive (AD) for all Boeing Model 767 airplanes. The original NPRM would have required an inspection of each main tank fuel boost pump for the presence of a pump shaft flame arrestor, and if the flame arrestor is missing, replacement of that pump with a pump having a pump shaft flame arrestor. The original NPRM would also have required repetitive measurements of the flame arrestor's position in the pump, and corrective actions if necessary. The original NPRM resulted from reports that certain fuel boost pumps may not have flame arrestors installed in the pump shaft and reports that the pin that holds the flame arrestor in place can break due to metal fatigue. This action revises the original NPRM by proposing the replacement of the pump with a new or modified pump, which would end the repetitive measurements. This action also revises the compliance times for certain airplanes. We are proposing this supplemental NPRM to prevent the possible migration of a flame from a main tank fuel boost pump inlet to the vapor space of that fuel tank, and consequent ignition of fuel vapors, which could result in a fire or explosion.
Special Awareness Training for the Washington, DC Metropolitan Area
This proposed rule would require special awareness training for any person who flies under visual flight rules (VFR) within 100 nautical miles of the Washington, DC VHF omni-directional range/ distance measuring equipment (DCA VOR/DME). This training program is provided by the FAA on its Web site and focuses primarily on training pilots on the procedures for flying in and around the Washington, DC Metropolitan Area Defense Identification Zone (ADIZ) and the Washington, DC Metropolitan Area Flight Restricted Zone (FRZ). The intended effect of this proposed rule is to reduce the number of unauthorized flights into the airspace of the Washington, DC Metropolitan Area ADIZ and FRZ through education of the pilot community.
Notice of Availability of Draft Advisory Circulars, Other Policy Documents and Proposed Technical Standard Orders
The FAA's Aircraft Certification Service publishes proposed non-regulatory documents that are available for public comment on the Internet at https://www.faa.gov/aircraft/draftdocs/.
Airworthiness Directives; Airbus Model A330-200, A330-300, A340-200, and A340-300 Series Airplanes, and Model A340-541 and A340-642 Airplanes
The FAA is adopting a new airworthiness directive (AD) for certain Airbus Model A330-200, A330-300, A340-200, and A340-300 series airplanes, and Model A340-541 and A340-642 airplanes. This AD requires inspecting to determine if certain emergency escape slides/slide rafts (referred to as slide/rafts) are installed in certain crew/passenger doors; and, if so, performing a one-time inspection to determine if the electrical harnesses of the slide/rafts are properly routed, and rerouting the harnesses if necessary. This AD results from report that a slide/raft failed to deploy properly during a deployment test. We are issuing this AD to detect and correct improper routing of the electrical harnesses of certain slide/rafts, which could prevent proper deployment of the slide/rafts and delay evacuation of passengers and flightcrew during an emergency.
Airworthiness Directives; Airbus Model A330-200 and A330-300 Series Airplanes, and Airbus Model A340-200 and A340-300 Series Airplanes
This amendment adopts a new airworthiness directive (AD), applicable to certain Airbus Model A330-200 and A330-300 series airplanes; and Airbus Model A340-200 and A340-300 series airplanes. This AD requires lubrication of the upper and lower shortening mechanism (SM) link of the main landing gear, and consequent detection of resistance or blockage of the greaseway. Depending upon the resistance finding and upon whether or not the airplane has a certain modification, this AD also requires various other actions including unblocking the greaseway; accomplishing all necessary repairs; performing various inspections; and accomplishing the eventual replacement of the SM8 pin, if necessary. This action is necessary to prevent failure of the landing gear lengthening system, which could result in reduced controllability of the airplane on the ground during landing. This action is intended to address the identified unsafe condition.
Airworthiness Directives; Honeywell International Inc. TPE331 Series Turboprop, and TSE331-3U Model Turboshaft Engines
The FAA is adopting a new airworthiness directive (AD) for certain Honeywell International Inc. TPE331 series turboprop, and TSE331-3U model turboshaft engines. This AD requires implementing a new flight cycle counting method for first, second, and third-stage turbine rotors used in aircraft that make multiple takeoffs and landings without an engine shutdown, and removing turbine rotors from service that have reached or exceeded their cycle life limits. This new flight cycle counting method requires determining total equivalent cycles accrued. This AD results from several reports of uncontained turbine rotor separation on engines used in special-use operations. We are issuing this AD to prevent uncontained failure of the turbine rotor due to low-cycle-fatigue (LCF), and damage to the aircraft.
Airworthiness Directives; McDonnell Douglas Model DC-9-31, DC-9-32, DC-9-32F, DC-9-33F, DC-9-34, and DC-9-34F Airplanes; and Model DC-9-40 and DC-9-50 Series Airplanes
The FAA is adopting a new airworthiness directive (AD) for certain transport category airplanes, identified above. This AD requires installing a bonding jumper from the boost pump volute to the fuel tank structure, and related investigative/corrective actions. This AD results from fuel system reviews conducted by the manufacturer. We are issuing this AD to prevent point-contact arcing or filament heating in the fuel tank, which, in the event of a short or ground fault inside the fuel tank, could result in a fuel tank explosion and consequent loss of the airplane.
Standard Instrument Approach Procedures; Miscellaneous Amendments
This amendment amends Standard Instrument Approach Procedures (SIAPs) for operations at certain airports. These regulatory actions are needed because of changes occurring in the National Airspace System, such as the commissioning of new navigational facilities, addition of new obstacles, or changes in air traffic requirements. These changes are designed to provide safe and efficient use of the navigable airspace and to promote safe flight operations under instrument flight rules at the affected airports.
Airworthiness Directives; BAE Systems (Operations) Limited Model BAe 146 and Avro 146-RJ Airplanes
The FAA proposes to adopt a new airworthiness directive (AD) for certain BAE Systems (Operations) Limited Model BAe 146 and Avro 146-RJ airplanes. This proposed AD would require repetitive inspections of the wing top skin under the rib 0 joint strap, and related investigative and corrective actions if necessary. This proposed AD results from a report of a significant crack in the wing top skin under the rib 0 joint strap. We are proposing this AD to detect and correct corrosion and cracking in that area, which could result in reduced structural integrity of the wing.