Federal Aviation Administration November 2007 – Federal Register Recent Federal Regulation Documents
Results 1 - 50 of 135
Airworthiness Directives; Air Tractor, Inc. Models AT-400, AT-500, AT-600, and AT-800 Series Airplanes
We propose to supersede Airworthiness Directive (AD) 2007-13- 17, which applies to all Air Tractor, Inc. (Air Tractor) Models AT-602, AT-802, and AT-802A airplanes. AD 2007-13-17 currently requires you to repetitively inspect the engine mount for any cracks, repair or replace any cracked engine mount, and report any cracks found to the FAA. Since we issued AD 2007-13-17, Air Tractor has learned of a Model AT-502B with a crack located where the lower engine mount tube is welded to the engine mount ring. In addition, Snow Engineering Co. has developed gussets that, when installed according to their service letter, terminate the repetitive inspection requirement. Consequently, this proposed AD would retain the inspection actions of AD 2007-13-17 for Model AT-602, AT-802, and AT-802A airplanes, including the compliance times and effective dates; establish new inspection actions for the AT- 400 and AT-500 series airplanes; incorporate a mandatory terminating action for all airplanes; and terminate the reporting requirement of AD 2007-13-17. We are proposing this AD to detect and correct cracks in the engine mount, which could result in failure of the engine mount. Such failure could lead to separation of the engine from the airplane.
IFR Altitudes; Miscellaneous Amendments
This amendment adopts miscellaneous amendments to the required IFR (instrument flight rules) altitudes and changeover points for certain Federal airways, jet routes, or direct routes for which a minimum or maximum en route authorized IFR altitude is prescribed. This regulatory action is needed because of changes occurring in the National Airspace System. These changes are designed to provide for the safe and efficient use of the navigable airspace under instrument conditions in the affected areas.
Proposed Establishment of Low Altitude Area Navigation Routes (T-Routes); St. Louis, MO
This action proposes to establish two low altitude Area Navigation (RNAV) routes, designated T-251 and T-272, in the St. Louis, MO, terminal area. T-routes are low altitude Air Traffic Service routes, based on RNAV, for use by aircraft that have instrument flight rules (IFR) approved Global Positioning System (GPS)/Global Navigation Satellite System (GNSS) equipment. The FAA is proposing this action to enhance safety and improve the efficient use of the navigable airspace in the St. Louis, MO, terminal area.
Proposed Modification of Class E Airspace; Hollister, CA
This action proposes to modify the Class E airspace area at Hollister, CA. Establishment of an Area Navigation (RNAV) Global Positioning System (GPS) Standard Instrument Approach Procedure (SIAP) at Hollister Municipal Airport, Hollister, CA, has made this proposal necessary. Additional controlled airspace is needed for the safety and management of aircraft executing the new RNAV (GPS) SIAPs at Hollister Municipal Airport, Hollister, CA.
Airworthiness Directives; Hartzell Propeller Inc. Model HC-E5N-3( ), HC-E5N-3( )(L), and HC-E5B-5( ) Propellers
The FAA is adopting a new airworthiness directive (AD) for Hartzell Propeller Inc. Model HC-E5N-3( ), HC-E5N-3( )(L), and HC-E5B- 5( ) propellers. This AD requires a onetime eddy current inspection of the propeller hub mounting bolt holes and replacement of the propeller hub if cracked. This AD results from the discovery of a five-bladed propeller hub with a large crack on the mounting flange of the hub. We are issuing this AD to prevent propeller hub failure, blade separation, damage to the airplane, and possible loss of airplane control.
Airworthiness Directives; Cirrus Design Corporation Model SR22 Airplanes
The FAA is adopting a new airworthiness directive (AD) for certain Cirrus Design Corporation (Cirrus) Model SR22 airplanes. This AD requires you to install a drain hole in the left and right outboard wing tips. This AD results from reports of pilots' inability to move the aileron control without using excessive force when flying in freezing conditions. Moisture from a prior rain shower entered through a gap at the interface of the left and right outboard wing tips and wing structure. The moisture traveled along the aft wing shear web, accumulated below the aileron control pulley, and froze at an altitude with an outside air temperature below freezing. When this moisture is exposed to freezing conditions, operation of the aileron control pulley is impaired. We are issuing this AD to prevent moisture from accumulating along the wing shear web where it may freeze in certain conditions. This condition could result in operational failure of the aileron control pulley, which could lead to loss of control.
Airworthiness Directives; Turbomeca Arriel 2S1 and 2S2 Turboshaft Engines
We are adopting a new airworthiness directive (AD) for the products listed above. This AD results from mandatory continuing airworthiness information (MCAI) provided by the European Aviation Safety Agency (EASA) to identify and correct an unsafe condition on Turbomeca Arriel 2S1 and 2S2 turboshaft engines. The MCAI states the following:
Airworthiness Directives; Rolls-Royce plc, RB211 Trent 768-60, 772-60, and 772B-60 Turbofan Engines
The FAA is superseding an existing airworthiness directive (AD) for Rolls-Royce plc (RR) RB211 Trent 768-60, 772-60, and 772B-60 turbofan engines. That AD currently requires initial and repetitive on- wing or in-shop inspections of the high pressure/intermediate pressure (HP/IP) turbine bearing oil feed tube heat shield. This AD requires the same actions but introduces a terminating action to the repetitive inspections. This AD results from RR introducing a revised HP/IP turbine bearing support structure as terminating action to the repetitive inspections of the HP/IP turbine bearing oil feed tube heat shield. We are issuing this AD to prevent an uncontained failure of the HP turbine disc and damage to the airplane.
Airworthiness Directives; GROB-WERKE GMBH & CO KG Models G102 CLUB ASTIR III, G102 CLUB ASTIR IIIb, and G102 STANDARD ASTIR III Gliders
We are adopting a new airworthiness directive (AD) for the products listed above. 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:
Noise Compatibility Program Notice Baton Rouge Metropolitan Airport, Ryan Field, Baton Rouge, LA
The Federal Aviation Administration (FAA) announces its findings on the noise compatibility program submitted by the Greater Baton Rouge Airport District under the provisions of 49 U.S.C. (the Aviation Safety and Noise Abatement Act, hereinafter referred to as ``the Act'') and 14 CFR part 150. These findings are made in recognition of the description of Federal and nonfederal responsibilities in Senate Report No. 96-52 (1980). On July 30, 2007, the FAA determined that the noise exposure maps submitted by the Greater Baton Rouge Airport District under part 150 were in compliance with applicable requirements. On November 13, 2007, the FAA approved the Baton Rouge Metropolitan Airport, Ryan Field noise compatibility program. Most of the recommendations of the program were approved. No program elements relating to new or revised flight procedures for noise abatement were proposed by the airport operator.
Airworthiness Directives; Boeing Model 777 Airplanes
The FAA proposes to adopt a new airworthiness directive (AD) for certain Boeing Model 777 airplanes. This proposed AD would require installing software upgrades to the airplane information management system (AIMS) located in the flight compartment. This proposed AD results from an investigation that revealed that detrimental effects could occur on certain AIMS software during flight. We are proposing this AD to prevent an unannunciated loss of cabin pressure. If an undetected loss of pressure event were to cause an unsafe pressure in the cabin, the flight crew could become incapacitated.
Standard Instrument Approach Procedures; Miscellaneous Amendments
This rule amends Standard Instrument Approach Procedures (SIAPs) for operations at certain airports. These regulatory actions are needed because of changes in the National Airspace System, such as the commissioning of new navigational facilities, adding of new obstacles, or changing 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; General Electric Company (GE) CF6-80C2B1 Turbofan Engine
The FAA is adopting a new airworthiness directive (AD) for a GE CF6-80C2B1 turbofan engine, serial number (SN) 690203, with fan disk, part number (P/N) 1703M78P11, SN RPMDA662, installed. This AD requires stripping of thermal spray coating, inspection of dovetail slots, and reapplication of thermal spray coating on certain stage 1 fan disks. This AD results from a report that a repair shop did not meet the process requirements when applying copper-nickel-indium (Cu- Ni-In) thermal coating to certain stage 1 fan disks. We are issuing this AD to prevent possible uncontained release of multiple fan blades, resulting in damage to the airplane.
Airworthiness Directives; Boeing Model 767 Airplanes
The FAA is superseding an existing airworthiness directive (AD) that applies to all Boeing Model 767 airplanes. That AD currently requires repetitive measurements of the rudder and elevator freeplay, repetitive lubrications of rudder and elevator components, and related investigative/corrective actions if necessary. This new AD instead requires revised repetitive measurements of the rudder freeplay and the elevator freeplay for each of the power control actuators (PCAs) that move the rudder and elevator, corrective and related investigative actions if necessary, and repetitive lubrications of the rudder and elevator components. For some airplanes, this AD also requires related concurrent actions. This AD results from reports of freeplay-induced vibration of the rudder and the elevator. The potential for vibration of the control surface should be avoided because the point of transition from vibration to divergent flutter is unknown. We are issuing this AD to prevent excessive vibration of the airframe during flight, which could result in loss of control of the airplane.
Airworthiness Directives; Societe de Motorisations Aeronautiques (SMA) SR305-230 and SR305-230-1 Reciprocating Engines
We are superseding an existing airworthiness directive (AD) for the products listed above. This AD results from mandatory continuing airworthiness information (MCAI) provided by the European Aviation Safety Agency (EASA) to identify and correct an unsafe condition on SMA SR305-230 and SR305-230-1 reciprocating engines. The MCAI states the following:
Airworthiness Directives; Rolls-Royce Corporation AE 3007A and AE 3007C Series Turbofan Engines
The FAA is superseding an existing airworthiness directive (AD) for Rolls-Royce Corporation (RRC) AE 3007A and AE 3007C series turbofan engines. That AD currently prohibits any flight following a ground engine start where the engine oil temperature is below 32 [deg]F (0 [deg]C), unless certain preflight operational procedures are followed. This AD also requires those actions and would also require a terminating action. This AD results from design improvements to components in the accessory gearbox air turbine starter mounting pad. We are issuing this AD to prevent an in-flight engine shutdown due to loss of engine oil from the engine accessory gearbox starter pad shaft seal drain and possible loss of the airplane.
Airworthiness Directives; Empresa Brasileira de Aeronautica S.A. (EMBRAER) Model EMB-135ER, -135KE, -135KL, and -135LR Airplanes and Model EMB-145, -145ER, -145MR, -145LR, -145XR, -145MP, and -145EP Airplanes
We are adopting a new airworthiness directive (AD) for the products listed above. 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:
Airworthiness Directives; Hawker Beechcraft Model 400A Series Airplanes
The FAA is adopting a new airworthiness directive (AD) for certain Hawker Beechcraft Model 400A series airplanes. This AD requires inspecting the galley cabinets to determine if a certain part number is installed or if a certain size of wire already exists, and doing related investigative/corrective actions if necessary. This AD results from reports of undersized, and consequently unprotected, wire in the galley cabinets. We are issuing this AD to prevent overheating of wire insulation and consequent fire or smoke in the airplane cabin.
Environmental Impact Statement: Sitka Rocky Gutierrez Airport, Sitka, AK
The Federal Aviation Administration announces that it will be including the assessment of the transfer of lands from federal to state ownership for aviation uses within the Environmental Impact Statement (EIS) currently being prepared by the Federal Aviation Administration. Public and Agency Scoping comments are being sought by the Federal Aviation Administration to receive input regarding the assessment of this additional proposed project within the EIS. Responsible Official: Patricia A. Sullivan, Environmental Protection Specialist, Federal Aviation Administration, Alaskan Region, Airports Division, 222 W. 7th Avenue, 14, Anchorage, AK 99513- 7587, Telephone (907) 271-5454.
Agency Information Collection Activity Seeking OMB Approval
The FAA invites public comments about our intention to request the Office of Management and Budget's (OMB) revision of a current information collection. The Federal Register Notice with a 60-day comment period soliciting comments on the following collection of information was published on August 15, 2007, vol. 72, no. 157, page 45862-45863. Feedback from this survey is used in the prevention of runway collisions and in the Department of the severity and frequency of runway incursions.
Special Conditions: Boeing Model 757 Series Airplanes; Seats With Non-Traditional, Large, Non-Metallic Panels
This action proposes special conditions for Boeing Model 757 series airplanes. These airplanes, as modified by Triad International Maintenance Company (TIMCO), will have a novel or unusual design feature(s) associated with seats that include non-traditional, large, non-metallic panels that would affect survivability during a post-crash fire event. The applicable airworthiness regulations do not contain adequate or appropriate safety standards for this design feature. These proposed special conditions contain the additional safety standards that the Administrator considers necessary to establish a level of safety equivalent to that established by the existing airworthiness standards.
Nationality and Registration Marks; Non Fixed-Wing Aircraft
This action confirms the direct final rule issued on September 14, 2007, which became effective on November 13, 2007. The rule changes certain display requirements for nationality and registration marks for powered parachutes and weight-shift-control aircraft. No comments were received on this direct final rule.
Airworthiness Directives; British Aerospace Aircraft Group, Scottish Division, Model Beagle B.121 Series 1, 2, 3 Airplanes
We propose to adopt a new airworthiness directive (AD) for the products listed above. This proposed 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:
Airworthiness Directives; Eclipse Aviation Corporation Model EA500 Airplanes
The FAA is adopting a new airworthiness directive (AD) for certain Eclipse Aviation Corporation Model (Eclipse) EA500 airplanes. This AD requires you to inspect the fuel filler adapters for primer and/or paint in the surround and, if present, remove the primer and/or paint. This AD results from an observation during a factory walk-around that the fuel filler surround was primed instead of being bare metal. We are issuing this AD to inspect and, if necessary, remove any paint and/or primer to restore the fuel filler adapter lightning strike protection. A lightning strike on the filler cap with insulating primer on the surround could result in the strike not dissipating to the surround. This could lead to arcing and ignition of fuel vapor inside the fuel tank.
Airworthiness Directives; Alpha Aviation Design Limited Model R2160 Airplanes
We propose to adopt a new airworthiness directive (AD) for the products listed above that would supersede an existing AD. This proposed 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 distortion of the rudder bars due to rudder control forces during aerobatic operation and nose wheel steering reaction forces. Rudder bar distortion could result in reduced control or loss of control. The proposed AD would require actions that are intended to address the unsafe condition described in the MCAI.
Airworthiness Directives; Boeing Model 727 Airplanes
The FAA proposes to adopt a new airworthiness directive (AD) for all Boeing Model 727 airplanes. This proposed AD would require repetitive inspections for cracking or corrosion of the threaded end of the lower segment of the main landing gear (MLG) side strut, and corrective actions if necessary. This proposed AD also would require prior or concurrent inspection for cracking or corrosion of the threads and thread relief area of the lower segment, corrective action if necessary, and re-assembly using corrosion inhibiting compound. This proposed AD results from reports of the threads cracking on the MLG side strut lower segment. We are proposing this AD to prevent a fractured side strut, which could result in collapse of the MLG.
Airworthiness Directives; Boeing Model 737-100, -200, -300, -400, and -500 Series Airplanes
The FAA proposes to adopt a new airworthiness directive (AD) for certain Boeing Model 737-100, -200, -300, -400, and -500 series airplanes. This proposed AD would require repetitive inspections for fatigue cracking in the longitudinal floor beam web, upper chord, and lower chord located at certain body stations, and repair if necessary. This proposed AD results from several reports of cracks in the center wing box longitudinal floor beams, upper chord, and lower chord. We are proposing this AD to detect and correct fatigue cracking of the upper and lower chords and web of the longitudinal floor beams, which could result in rapid loss of cabin pressure.
Airworthiness Directives; Boeing Model 737-200 Series Airplanes
The FAA proposes to adopt a new airworthiness directive (AD) for certain Boeing Model 737-200 series airplanes. This proposed AD would require repetitive inspections to detect cracking of the support fittings of the Krueger flap actuators, and corrective actions if necessary. This proposed AD also would require eventual replacement of any existing aluminum support fitting on each wing with a steel fitting, and modification of the aft attachment of the actuator. Doing these actions would terminate the repetitive inspection requirements. This proposed AD results from reports of cracking due to fatigue and stress corrosion of the support fittings of the Krueger flap actuator. We are proposing this AD to prevent cracking of the support fittings, which could result in fracturing of the actuator attach lugs, separation of the actuator from the support fitting, severing of the hydraulic lines, resultant loss of hydraulic fluids, and consequent reduced controllability of the airplane.
Airworthiness Directives; Airbus Model A330-200, A330-300, A340-200, and A340-300 Series Airplanes
The FAA proposes to supersede an existing airworthiness directive (AD) that applies to all Airbus Model A330-200, A330-300, A340-200, and A340-300 series airplanes. The existing AD currently requires an accelerated schedule of repetitive testing of the elevator servo control loops, and corrective actions if necessary. This proposed AD would retain the existing requirements, reduce the applicability of the existing AD, and add terminating actions. This proposed AD results from reports of failed elevator servo controls due to broken guides. We are proposing this AD to prevent failure of the elevator servo controls during certain phases of takeoff, which could result in an unannounced loss of elevator control and consequent reduced controllability of the airplane.
Airworthiness Directives; Boeing Model 757 Airplanes Equipped with Rolls Royce RB211-535E Engines
The FAA proposes to adopt a new airworthiness directive (AD) for certain Boeing Model 757 airplanes equipped with Rolls Royce RB211- 535E engines. This proposed AD would require repetitive inspections for signs of damage of the aft hinge fittings and attachment bolts of the thrust reversers, and related investigative and corrective actions if necessary. This proposed AD results from reports of several incidents of bolt failure at the aft hinge fittings of the thrust reversers due to, among other things, high operational loads. We are proposing this AD to prevent failure of the attachment bolts and consequent separation of a thrust reverser from the airplane during flight, which could result in structural damage to the airplane.
Airworthiness Directives; Boeing Model 737-300, -400, and -500 Series Airplanes
The FAA proposes to adopt a new airworthiness directive (AD) for certain Boeing Model 737-300, -400, and -500 series airplanes. This proposed AD would require repetitive inspections for cracking of the body buttock line (BBL) 0.07 floor beam between body station (BS) 651 and BS 676 and between BS 698 and BS 717, and related investigative and corrective actions if necessary. This AD also provides an optional terminating action for the repetitive inspections. This proposed AD results from reports of cracking in the BBL 0.07 floor beam. We are proposing this AD to prevent failure of the main deck floor beams at certain body stations due to fatigue cracking, which could result in rapid decompression of the airplane.
Airworthiness Directives; Airbus Model A330-200, A330-300, A340-200, and A340-300 Series Airplanes
The FAA proposes to supersede an existing airworthiness directive (AD) that applies to all Airbus Model A330-200, A330-300, A340-200, and A340-300 series airplanes. The existing AD currently requires a revision of the airplane flight manual to include procedures for a pre-flight elevator check before each flight, repetitive inspections for cracks of the attachment lugs of the mode selector valve position transducers on the elevator servo controls, and corrective actions if necessary. This proposed AD would retain the existing requirements, reduce the applicability of the existing AD, and add terminating actions. For certain airplanes, this proposed AD would require upgrading the flight control primary computers. This proposed AD results from cracks of the transducer body at its attachment lugs. We are proposing this AD to ensure proper functioning of the elevator surfaces, and to prevent cracking of the attachment lugs, which could result in partial loss of elevator function and consequent reduced controllability of the airplane.
RTCA Special Committee 205/EUROCAE Working Group 71: Software Considerations in Aeronautical Systems Seventh Joint Meeting
The FAA is issuing this notice to advise the public of a meeting of RTCA Special Committee 205/EUROCAE Working Group 71: Software Considerations in Aeronautical Systems.
RTCA Special Committee 147 Sixty-Sixth Plenary: Minimum Operational Performance Standards for Traffic Alert and Collision Avoidance Systems Airborne Equipment/Fourth Meeting of Working Group 75
The FAA is issuing this notice to advise the public of a meeting of RTCA Special Committee 147: Minimum Operational Performance Standards for Traffic Alert and Collision Avoidance Systems Airborne Equipment and Working Group 75.
Seventy-Fourth Meeting: RTCA Special Committee 159: Global Positioning System (GPS)
The FAA is issuing this notice to advise the public of a meeting of RTCA Special Committee 159: Global Positioning System.
Airworthiness Directives; Boeing Model 727 Airplanes
The FAA proposes to supersede an existing airworthiness directive (AD) that applies to certain Boeing Model 727 series airplanes. The existing AD currently requires repetitive inspections to detect cracks and loose brackets of the elevator rear spar, and corrective actions if necessary. The existing AD also provides for an optional terminating action for the repetitive inspections. This proposed AD would reduce the repetitive intervals of the inspections, mandate the previously optional terminating action for the repetitive inspections, and no longer allow stop-drilling. This proposed AD results from new reports of cracks, elongated fastener holes, and loose fittings of the elevator rear spar. We are proposing this AD to prevent cracking of the elevator rear spar at the tab hinge locations, which could cause excessive freeplay of the elevator control tab and possible tab flutter, and consequent loss of control of the airplane.
Airworthiness Directives; Boeing Model 747-100B SUD, 747-200B, 747-300, 747-400, and 747-400D Series Airplanes
The FAA is superseding an existing airworthiness directive (AD) that applies to all Boeing Model 747-100B SUD, 747-300, 747-400, and 747-400D series airplanes; and Model 747-200B series airplanes having a stretched upper deck. The existing AD currently requires repetitively inspecting for cracking or discrepancies of the fasteners in the tension ties, shear webs, and frames at body stations 1120 through 1220, and performing related investigative and corrective actions if necessary. This new AD reduces the repetitive interval for certain inspections. This AD results from new reports of multiple severed adjacent tension ties, in addition to the previous reports of cracked and severed tension ties, broken fasteners, and cracks in the frame, shear web, and shear ties adjacent to tension ties for the upper deck. We are issuing this AD to detect and correct cracking of the tension ties, shear webs, and frames of the upper deck, which could result in rapid decompression and reduced structural integrity of the airplane.
Noise Exposure Map Notice for Pittsburg International Airport, Pittsburgh, PA
The Federal Aviation Administration (FAA) announces its determination that the update to the noise exposure maps submitted by the Allegheny County Airport Authority for the Pittsburgh International Airport under the provisions of Title I of the Aviation Safety and Noise Abatement Act of 1979 (Pub. L. 96-193) and 14 CFR part 150 are in compliance with applicable requirements.
Notice of Opportunity for Public Comment on Surplus Property Release at George M. Bryan Field Airport, Starkville, MS
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 Starkville to waive the requirement that a 1.87 acre parcel of surplus property, located at the George M. Bryan Field Airport, be used for aeronautical purposes.
Airworthiness Directives; SAAB Model SF340A and Model 340B Airplanes
We propose to adopt a new airworthiness directive (AD) for the products listed above. This proposed 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:
Airworthiness Directives; Bombardier Model DHC-8-102, DHC-8-103, DHC-8-106, DHC-8-201, DHC-8-202, DHC-8-301, DHC-8-311, and DHC-8-315 Airplanes, and Model DHC-8-400 Series Airplanes
We propose to adopt a new airworthiness directive (AD) for the products listed above. This proposed 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:
Airworthiness Directives; McDonnell Douglas Model 717-200 Airplanes
The FAA proposes to adopt a new airworthiness directive (AD) for certain McDonnell Douglas Model 717-200 airplanes. This proposed AD would require installing an additional support bracket for the gray water drain hose, replacing the screw of the support bracket with a new screw for the potable water supply hose, installing a spacer, doing a detailed inspection to detect interference or wear damage on hoses, lines and/or cables, and doing corrective actions if necessary. This proposed AD results from reports of interference between the potable water supply hose and/or gray water drain hose at the aft lavatories with the fuel line and/or power feeder cables of the auxiliary power unit (APU) located below the aft cabin floor. We are proposing this AD to prevent interference and chafing between the potable water supply hose and/or gray water hose with the fuel line and/or power feeder cables of the APU, which may cause arcing and sparking, and/or fuel leaking, and consequent fire or explosion.
Airworthiness Directives; Bombardier Model CL-600-2B19 (Regional Jet Series 100 & 440) Airplanes
The FAA proposes to supersede an existing airworthiness directive (AD) that applies to certain Bombardier Model CL-600-2B19 (Regional Jet Series 100 & 440) airplanes. The existing AD currently requires inspecting contactors 1K4XD, 2K4XD, and K4XA to determine the type of terminal base plate, and applying sealant on the terminal base plates if necessary. This proposed AD would require an inspection to determine if certain alternating current (AC) service and utility bus contactors have a terminal base plate made from non-G9 melamine material, and corrective actions if necessary; or reidentification of the mounting tray of the contactors; as applicable. This proposed AD also limits the applicability of the existing AD. This proposed AD results from incidents of short circuit failures of certain AC contactors located in the avionics bay. We are proposing this AD to prevent short circuit failures of certain AC contactors, which could result in arcing and consequent smoke or fire.
Airworthiness Directives; McDonnell Douglas Model DC-8-55, DC-8F-54, and DC-8F-55 Airplanes; and Model DC-8-60, DC-8-70, DC-8-60F, and DC-8-70F Series Airplanes
The FAA proposes to supersede an existing airworthiness directive (AD) that applies to certain McDonnell Douglas Model DC-8-55, DC-8F-54, and DC-8F-55 airplanes; and Model DC-8-60, DC-8-70, DC-8-60F, and DC-8-70F series airplanes. The existing AD currently requires a one-time inspection for previous repairs of the aft fuselage skin panel at the longeron 28 skin splice; repetitive inspections for cracks of the same area; and related investigative and corrective actions. The existing AD also provides optional actions for extending the repetitive inspection intervals. This proposed AD would re-define and more clearly describe the optional actions for extending the repetitive inspection intervals. This proposed AD results from our determination that the inspections and actions described in the existing AD do not adequately address the unsafe condition. We are proposing this AD to detect and correct cracks in the aft fuselage skin at the longeron 28 skin splice, which could lead to loss of structural integrity of the aft fuselage, resulting in rapid decompression of the airplane.
Airworthiness Directives; Boeing Model 737-100, -200, -200C, -300, -400, and -500 Series Airplanes
The FAA is superseding an existing airworthiness directive (AD) that applies to all Model 737-100, -200, -200C, -300, -400, and - 500 series airplanes. The existing AD currently requires repetitive detailed inspections for damage of the electrical wire and sleeve that run to the fuel boost pump through a conduit in the fuel tank, and arcing damage of the conduit and signs of fuel leakage into the conduit; replacement of the sleeve with a new, smaller-diameter sleeve; and related investigative and corrective actions, as applicable. This new AD reduces the inspection threshold for certain airplanes. This AD results from a report of a fuel tank explosion on a Model 727-200F airplane on the ground, and a report of chafed wires and a damaged power cable sleeve of a fuel boost pump discovered during an inspection on a Model 737-300 airplane. (The fuel boost pump installation on certain Model 737 airplanes is almost identical to the installation on Model 727 airplanes.) We are issuing this AD to detect and correct chafing of the fuel boost pump electrical wiring and leakage of fuel into the conduit, and to prevent electrical arcing between the wiring and the surrounding conduit, which could result in arc-through of the conduit, and consequent fire or explosion of the fuel tank.
Colo Void Clause Coalition; Antenna Systems Co-Location; Voluntary Best Practices
On April 27, 2004, the FAA revised its policy regarding the co-location of antenna systems on existing structures previously studied by the FAA. Based on various additional comments from industry regarding the initial policy, the FAA finds that further modifications to this policy are necessary.
Airworthiness Directives; CFM International, S.A. CFM56-5C4/1 Series Turbofan Engines
The FAA is superseding an existing airworthiness directive (AD) for CFM International, S.A. CFM56-5C4/1 series turbofan engines. That AD currently requires that the low pressure turbine (LPT) conical support, part number (P/N) 337-002-407-0, be removed from service at or before reaching the cyclic life limit of 9,350 cycles-since-new (CSN). This AD requires that the same P/N LPT conical support be removed from service before reaching the new, relaxed cyclic life limit of 20,000 CSN. This AD results from CFM International, S.A. performing a life extension study of the LPT conical support, P/N 337-002-407-0. We are issuing this AD to prevent LPT conical supports from remaining in service beyond their certified cyclic life limit, which could result in an uncontained engine failure and damage to the airplane.
Airworthiness Directives; Bell Helicopter Textron Canada Model 206A and 206B Helicopters
We are adopting a new airworthiness directive (AD) for Bell Helicopter Textron Canada (BHTC) Model 206A and 206B helicopters. This AD results from mandatory continuing airworthiness information (MCAI) originated by an aviation authority to identify and correct an unsafe condition on an aviation product. The aviation authority of Canada, with which we have a bilateral agreement, states in the MCAI:
Second Meeting, RTCA Special Committee 216: Aeronautical System Security
The FAA is issuing this notice to advise the public of a meeting of RTCA Special Committee 216: Aeronautical Systems Security.
RTCA Program Management Committee
The FAA is issuing this notice to advise the public of a meeting of the RTCA Program Management Committee.
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