Federal Aviation Administration 2007 – Federal Register Recent Federal Regulation Documents
Results 901 - 950 of 1,687
Requirements for Amateur Rocket Activities
The Federal Aviation Administration (FAA) is proposing revisions to amateur rocket regulations and activities to preserve the level of safety associated with amateur rocketry. Current regulations are outdated and do not reflect current industry practice. This action would update our regulations and guidance for amateur rocket activities. We propose to change the amateur rocket classifications, the way we collect information from operators of advanced amateur rocket launches, and the format of the regulations. In addition, we propose to address and correct minor inconsistencies in the present rules. We would take this action to update our regulations and align them with advances in the amateur rocket industry. We would also codify certain operating restrictions that are already widely used but are important enough to be required universally.
Airworthiness Directives; Empresa Brasileira de Aeronautica S.A. (EMBRAER) Model EMB-135 Airplanes and Model EMB-145, -145ER, -145MR, -145LR, -145XR, -145MP, and -145EP Airplanes
The FAA is adopting a new airworthiness directive (AD) for certain EMBRAER Model EMB-135 airplanes and Model EMB-145, -145ER, - 145MR, -145LR, -145XR, -145MP, and -145EP airplanes. This AD requires replacing the metallic tubes enclosing the vent and pilot valve wires in the left- and right-hand wing fuel tanks with non-conductive hoses. This AD results from fuel system reviews conducted by the manufacturer. We are issuing this AD to prevent an ignition source inside the fuel tank that could ignite fuel vapor and cause a fuel tank explosion and loss of the airplane.
Airworthiness Directives; Dassault Model Falcon 2000EX and Falcon 900EX Airplanes
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 airworthiness authority of another country to identify and correct an unsafe condition on an aviation product. The MCAI describes the unsafe condition as some stringer reinforcements (F900DX) and some rivets (F900DX/F2000EX) missing from the skin panels on each side of the fuselage between frames 9 and 10 on certain Falcon 900DX and Falcon 2000EX EASy aircraft; this situation affects the structural integrity of the fuselage. We are issuing this AD to require actions to correct the unsafe condition on these products.
Airworthiness Directives; Aerospatiale Model ATR42 and ATR72 Airplanes
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 airworthiness authority of another country to identify and correct an unsafe condition on an aviation product. The MCAI describes the unsafe condition as electrical arcing due to chafing between a bonding cable and electrical wires in the 120 VU (volt unit) electrical harness, causing the loss of some instruments and loss of one hydraulic circuit pressure (i.e., loss of pressure of one hydraulic circuit). We are issuing this AD to require actions to correct the unsafe condition on these products.
Airworthiness Directives; Empresa Brasileira Aeronautica S.A. (EMBRAER) Model ERJ 170 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; Airbus Model A310 Series Airplanes; and Airbus Model A300-600 Series Airplanes
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 airworthiness authority of another country to identify and correct an unsafe condition on an aviation product. The MCAI describes the unsafe condition as explosion risks. Chafing of the fuel pump cables could result in short circuits leading to fuel pump failure, intermittent operation, arcing, and possible fuel tank explosion. We are issuing this AD to require actions to correct the unsafe condition on these products.
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; General Electric Company (GE) CF34-10E Series Turbofan Engines
The FAA is superseding an existing airworthiness directive (AD) for GE CF34-10E series turbofan engines. That AD currently requires removing the fuel inlet strainer from main fuel pump (MFP) part number (P/N) 2043M12P03, installing a certain replacement flange as an interim repair, remarking the MFP to P/N 2043M12P04, and performing initial and repetitive visual inspections of the main fuel filter. This AD requires removing MFPs, P/Ns 2043M12P03, 2043M12P04, 837600-3, and 837600-4, from service and installing an improved MFP with a different P/N. This AD results from GE determining that the cause of MFP fuel strainer failure is a design problem with the strainer. We are issuing this AD to prevent engine in-flight shutdown due to MFP malfunctions.
Airworthiness Directives; Eurocopter France Model SA-365 N1, AS-365N2, AS 365 N3, SA-366G1, EC 155B, and EC155B1 Helicopters
This document proposes superseding an existing airworthiness directive (AD) for the specified Eurocopter France (ECF) model helicopters. That AD currently requires a onetime inspection for end play in the pitch control rod assembly double bearing (bearing) using the tail rotor (T/R) hub control plate, and before further flight, replacing the bearing if end play is present. This action would require checking the T/R gearbox (TGB) oil level before the first flight of the day and maintaining the oil at the maximum level for certain helicopters. Also, this action would require, during each required inspection or at certain specified intervals, ensuring the oil is at the maximum level for certain other model helicopters. Also, this action would require inspecting the magnetic plug for chips at specified intervals. Depending on the quantity of chips found, this action would require either replacing the TGB before further flight or further inspecting for axial play in the T/R hub pitch change control spider (spider). If axial play is found in the spider, before further flight, this AD would require replacing the bearing. This proposal is prompted by the finding that metal chips were not detected on the magnetic plug due to insufficient oil flow because the oil in the TGB was being maintained at the minimum level. The actions specified by the proposed AD are intended to detect metal chips on the magnetic plug, to prevent damage to the bearing resulting in end play, loss of T/R pitch control, and subsequent loss of control of the helicopter.
Airworthiness Directives; Cirrus Design Corporation Models SR20 and SR22 Airplanes
We propose to adopt a new airworthiness directive (AD) for certain Cirrus Design Corporation (CDC) Models SR20 and SR22 airplanes. This proposed AD would require you to replace the cabin door rod ends at the upper and lower hinges of the cabin door with newly designed rod ends. This proposed AD results from two known occurrences of in-flight cabin door separation (one total separation and one retained by the door strut). The rod ends, a component of the door hinges, may fail and result in a door separation from the airplane while in flight. We are proposing this AD to prevent in-flight failure of the cabin door, which could result in door separation from the airplane.
Aviation Rulemaking Advisory Committee-New Task
The FAA assigned the Aviation Rulemaking Advisory Committee a new task to: Review and recommend revisions to certain requirements for operation of aviation maintenance technician schools. This notice is to inform the public of this ARAC activity.
Airworthiness Directives; Hawker Beechcraft Corporation (Type Certificate No. A00010WI previously held by Raytheon Aircraft Company) Model 390 Airplanes
We propose to adopt a new airworthiness directive (AD) for certain Hawker Beechcraft Corporation Model 390 Airplanes. This proposed AD would require you to inspect the starter-generator to determine the serial number (S/N) and suffix letter, which indicates if the part is defective, and replace any defective starter-generator with one of new design. This proposed AD results from reports of a manufacturing error where certain starter-generators may have been improperly shimmed. We are proposing this AD to detect and replace defective starter-generators, which could result in premature starter- generator failure. This failure could lead to increased chances of dual starter-generator failure on the same flight.
Standard Instrument Approach Procedures, Weather Takeoff Minimums; Miscellaneous Amendments
This amendment establishes, amends, suspends, or revokes Standard Instrument Approach Procedures (SIAPs) and/or Weather Takeoff Minimums for operations at certain airports. These regulatory actions are needed because of the adoption of new or revised criteria, or 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.
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.
Airworthiness Directives; Bombardier Model DHC-8-102, -103, -106, -201, -202, -301, -311, and -315 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; Airbus Model A300F4-605R and A300F4-622R 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:
Special Conditions: Boeing Model 787-8 Airplane; Crashworthiness
This notice proposes special conditions for the Boeing Model 787-8 airplane. This airplane will have novel or unusual design features when compared to the state of technology envisioned in the airworthiness standards for transport category airplanes. These novel or unusual design features are associated with carbon fiber reinforced plastic used in the construction of the fuselage. For these design features, the applicable airworthiness regulations do not contain adequate or appropriate safety standards for impact response characteristics to ensure survivable crashworthiness. 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. Additional special conditions will be issued for other novel or unusual design features of the Boeing 787-8 airplanes.
Special Conditions: Aviation Technology Group (ATG), Inc.; Javelin Model 100 Series Airplane; Acrobatic Spins
These special conditions are issued for the Aviation Technology Group (ATG) Javelin Model 100 Series airplane. This airplane will have a novel or unusual design feature(s) associated with acrobatic spin recovery requirements. The applicable airworthiness regulations do not contain adequate or appropriate safety standards for this design feature. These 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.
Special Conditions: Boeing Model 787-8 Airplane; Tire Debris Penetration of Fuel Tank Structure
This notice proposes special conditions for the Boeing Model 787-8 airplane. This airplane will have novel or unusual design features when compared to the state of technology envisioned in the airworthiness standards for transport category airplanes. These design features include wing fuel tanks constructed of carbon fiber composite materials. 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. Additional special conditions will be issued for other novel or unusual design features of the Boeing Model 787-8 airplanes.
Airworthiness Directives; Airbus Model A330 and A340 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; Dassault Model Mystere-Falcon 50 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; Boeing Model 727 Airplanes
The FAA is adopting a new airworthiness directive (AD) for all Boeing Model 727 airplanes. This AD requires repetitive inspections for cracks of the body skin, doubler, and bear strap at the forward edge of the upper and lower hinge cutouts of the forward entry door, related investigative actions, and corrective action if necessary. This AD also requires a preventive modification. This AD results from reports of skin and bear strap cracks at hinge cutouts of the forward entry door. We are issuing this AD to detect and correct cracks in the skin, doubler, and bear strap at the hinge cutouts of the forward entry door, which could result in rapid decompression of the airplane.
Airworthiness Directives; Boeing Model 747-100, 747-100B, 747-100B SUD, 747-200B, 747-200C, 747-300, 747-400, 747-400D, 747SR, and 747SP Series Airplanes
The FAA is superseding an existing airworthiness directive (AD), which applies to certain Boeing Model 747 airplanes. That AD currently requires repetitive inspections to detect cracks and/or corrosion of the girt bar support fitting at certain main entry doors (MED), and repair or replacement of the support fitting. The existing AD also provides for various terminating actions for the repetitive inspections. This new AD requires the following additional actions: An inspection, for certain airplanes, for correct installation of square and conical washers in the girt bar support fitting; an inspection, for certain other airplanes, to determine if the washers are installed; and related investigative and corrective action if necessary. This AD results from a report that the square and conical washers may be installed incorrectly in the girt bar support fitting on airplanes on which the support fitting was repaired or replaced in accordance with the requirements of the existing AD. We are issuing this AD to detect and correct corrosion of the girt bar support fitting, which could result in separation of the escape slide from the lower door sill during deployment, and subsequently prevent proper operation of the escape slides at the main entry doors during an emergency. We are also issuing this AD to detect and correct incorrect installation of the square and conical washers in the girt bar support fitting, which could result in failure of the escape slide when deployed.
Airworthiness Directives; Viking Air Limited (Type Certificate No. A-806 Previously Held by deHavilland Inc.) Models DHC-2 Mk. I, DHC-2 Mk. II, and DHC-2 Mk. III Airplanes
We are superseding an existing 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:
Airworthiness Directives; Hawker Beechcraft Corporation (Type Certificate (TC) No. 3A20 and TC No. A24CE Formerly Held by Raytheon Aircraft Corporation and Beech) Models C90A, B200, B200C, B300, and B300C Airplanes
We are adopting a new airworthiness directive (AD) that supersedes AD 2006-23-02, which applies to certain Hawker Beechcraft Corporation (HBC) (Type Certificate (TC) No. 3A20 and TC No. A24CE formerly held by Raytheon Aircraft Corporation and Beech) Models C90A, B200, B200C, B300, and B300C airplanes. AD 2006-23-02 currently requires you to inspect the flight controls for improper assembly or damage, and if any improperly assembled or damaged flight controls are found, take corrective action. Since we issued AD 2006-23-02, we have determined the need to add airplane serial numbers that were not previously included in the applicability. Consequently, this AD retains the actions of AD 2006-23-02 and adds airplane serial numbers to the applicability. We are issuing this AD to detect and correct improperly assembled or damaged flight controls, which could result in an unsafe condition by reducing capabilities of the flight controls and lead to loss of control.
Airworthiness Directives; Diamond Aircraft Industries GmbH Model DA 42 Airplanes
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:
RTCA Program Management Committee
The FAA is issuing this notice to advise the public of a meeting of the RTCA Program Management Committee.
Modification to the Norton Sound Low, Woody Island Low, Control 1234L and Control 1487L Offshore Airspace Areas; Alaska
This action amends the following four Offshore Airspace Areas in Alaska: Norton Sound Low, Woody Island Low, Control 1234L and Control 1487L. This action describes the airspace west of 160[deg] W. longitude as it is currently depicted on aeronautical charts. Some of the existing controlled airspace is described as domestic Class E5 airspace around Kodiak, AK. This airspace instead will be listed within the Woody Island Low Offshore Airspace Area. The FAA is taking this action to provide additional controlled airspace for aircraft instrument flight rules (IFR) operations, and to correctly describe the existing offshore airspace areas in FAA Order 7400.9P, Airspace Designations and Reporting Points, dated September 1, 2006, and effective September 15, 2006.
Airworthiness Directives; Goodrich Evacuation Systems Approved Under Technical Standard Order (TSO), TSO-C69, TSO-C69a, TSO-C69b, and TSO-69c, Installed on Various Boeing, McDonnell Douglas, and Airbus Transport Category Airplanes
The FAA proposes to adopt a new airworthiness directive (AD) for certain Goodrich evacuation systems approved under TSO-C69, TSO- C69a, TSO-C69b, and TSO-69c, installed on certain Boeing, McDonnell Douglas, and Airbus transport category airplanes. For certain systems, this proposed AD would require replacing the evacuation systems shear- pin restraints with new ones. For certain other systems, this proposed AD would require an inspection for manufacturing lot numbers; and a general visual inspection of the shear-pin restraint for discrepancies, and corrective actions if necessary. This proposed AD is prompted by several reports of corroded shear-pin restraints that prevented Goodrich evacuation systems from deploying properly. We are proposing this AD to prevent failure of the evacuation system, which could impede an emergency evacuation and increase the chance of injury to passengers and flightcrew during the evacuation.
Passenger Facility Charge Program, Debt Service, Air Carrier Bankruptcy, and Miscellaneous Changes
When the FAA issued a final rule which amended FAA regulations dealing with the Passenger Facility Charge (PFC) program to add more eligible uses for revenue, protect such revenue in bankruptcy proceedings, and eliminate charges to passengers on military charters, we erroneously stated a paragraph reference in the regulatory text. This correction removes the erroneous paragraph reference and replaces it with the correct paragraph reference.
Changes to the Definition of Certain Light-Sport Aircraft
On April 19, 2007, the FAA published a Direct Final Rule to amend the definition of a light-sport aircraft (LSA) in two areas. The changes permit development of lighter-than-air (LTA) LSA, and allow retractable landing gear for LSA intended for operation on water.
Proposed Revision of Jet Routes J-29 and J-101; South Central United States
This action proposes to revise Jet Routes J-29 and J-101 over the South Central United States in support of the Houston Area Air Traffic System Project. These actions would allow for more effective utilization of airspace and would enhance the management of aircraft operations over the Houston terminal area.
Special Conditions; Op Technologies, Inc.; Cirrus Design Corporation Model SR22; Protection of Systems for High Intensity Radiated Fields (HIRF)
These special conditions are issued to Op Technologies, Inc.; 15236 NW., Greenbrier Parkway, Beaverton, OR 97006 for a Supplemental Type Certificate for the Cirrus Design Corporation Model SR22 airplane. This airplane will have novel and unusual design features when compared to the state of technology envisaged in the applicable airworthiness standards. These novel and unusual design features include the installation of electronic flight instrument system (EFIS) displays Model Pegasus Primary Flight Displays manufactured by Op Technologies for which the applicable regulations do not contain adequate or appropriate airworthiness standards for the protection of these systems from the effects of high intensity radiated fields (HIRF). These special conditions contain the additional safety standards that the Administrator considers necessary to establish a level of safety equivalent to the airworthiness standards applicable to these airplanes.
Special Conditions: AmSafe, Incorporated; Quest Aircraft Company, LLC., Kodiak Model 100; Inflatable Four-Point Restraint Safety Belt With an Integrated Airbag Device
These special conditions are issued for the installation of an AmSafe, Inc., Inflatable Four-Point Restraint Safety Belt with an Integrated Airbag Device on Quest Aircraft Company, LLC, Kodiak Model 100. These airplanes, as modified by the installation of this Inflatable Safety Belt, will have novel and unusual design features associated with the upper-torso restraint portions of the four-point safety belt, which contains an integrated airbag device. The applicable airworthiness regulations do not contain adequate or appropriate safety standards for this design feature. These 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.
Drug and Alcohol Testing Requirements; Correction
The FAA is correcting a technical amendment to its drug and alcohol testing requirements published on March 15, 2007 (72 FR 12082). The purpose of the technical amendment was to conform those requirements to the National Air Tour Safety Standards. In one paragraph of the regulation, we inadvertently referred to an ``antidrug program,'' when we should have referred to an ``Alcohol Misuse Prevention Program.''
National Air Tour Safety Standards; Correction
The FAA is correcting references in its Commercial Air Tours and National Parks Air Tour Management regulations to conform to amendments made by the National Air Tour Safety Standards final rule published on February 13, 2007 (72 FR 6884). In addition, the FAA is removing a sentence from the preamble that referred to aircraft certificated as ``Experimental Category'' and clarifying the applicability of the rule to the ``Young Eagles'' program.
Area Navigation (RNAV) and Miscellaneous Amendments
The FAA is amending its regulations to reflect technological advances that support area navigation (RNAV); include provisions on the use of suitable RNAV systems for navigation; amend certain terms for consistency with those of the International Civil Aviation Organization (ICAO); remove reference to the middle marker in certain sections because a middle marker is no longer operationally required; clarify airspace terminology; and incorporate by reference obstacle departure procedures into Federal regulations. The changes will facilitate the use of new navigation reference sources, enable advancements in technology, and increase efficiency of the National Airspace System.
Notice of Passenger Facility Charge (PFC) Approvals and Disapprovals
The FAA publishes a monty notice, as appropriate, of PFC approvals and disapprovals under the provisions of the Aviation Safety and Capacity Expansion Act of 1990 (Title IX of the Omnibus Budget Reconciliation Act of 1990) (Pub. L. No. 101-508) and Part 158 of the Federal Aviation Regulations (14 CFR Part 158). This notice is published pursuant to paragraph d of Sec. 158.29.
Airworthiness Directives; Boeing Model 737-600, -700, -700C, -800 and -900 Series Airplanes
The FAA proposes to adopt a new airworthiness directive (AD) for certain Boeing Model 737-600, -700, -700C, -800 and -900 series airplanes. This proposed AD would require inspecting ground blocks GD261 and GD264 for corrosion, measuring the electrical bond resistance between the ground blocks and the airplane structure, separating the ground wires for the fuel boost pump circuit between ground blocks GD261 and GD264, and doing corrective actions if necessary. This proposed AD results from a report of random flashes of the six fuel pump low pressure lights and intermittent operation of the fuel boost pumps. We are proposing this AD to prevent the simultaneous malfunction of all six fuel boost pumps, which could cause the engines to operate on suction feed and potentially flame out.
Airworthiness Directives; Gulfstream Aerospace LP Model Galaxy Airplanes and Model Gulfstream 200 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; Airbus Model A321 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 is revising an earlier proposed airworthiness directive (AD) for all McDonnell Douglas Model 717-200 airplanes. The original NPRM would have required inspecting the power conversion distribution unit (PCDU) to determine its part number, and modifying certain PCDUs. The original NPRM was prompted by reports of failed PCDUs, the loss of an electrical bus, and the presence of a strong electrical burning odor in the flight deck and forward cabin. This action revises the original NPRM by reidentifying the part number reference for the proposed corrective action. We are proposing this supplemental NPRM to prevent the loss of an electrical bus due to PCDU failure, resulting in the loss of all flight displays for an unacceptable time period, and consequent emergency landing.
Airworthiness Directives; Airbus Model A340-211, -212, -311, and -312 Airplanes
The FAA is superseding an existing airworthiness directive (AD) that applies to certain Airbus Model A340-211, -212, -311, and - 312 airplanes. The existing AD currently requires an initial rotating probe inspection and initial and repetitive ultrasonic inspections for discrepancies of the first fastener hole of the horizontal flange of the keel beam on previously modified airplanes, installation of new fasteners, and corrective action if necessary. This AD retains the actions required by the existing AD and adds new rotating probe inspections and a terminating action for the repetitive inspections of the existing AD. This AD results from a report that certain inspections, done before accomplishing the modification of the lower keel beam fitting and forward lower shell connection, revealed cracking that was outside the modification limits specified in the service bulletin; the cracking was repaired by installing a titanium doubler. We are issuing this AD to prevent discrepancies of the fastener holes of the horizontal flange of the keel beam, which could result in reduced structural integrity of the fuselage.
Airworthiness Directives; General Electric Company (GE) CF6-80C2B Series Turbofan Engines
The FAA is adopting a new airworthiness directive (AD) for GE CF6-80C2B series turbofan engines with electronic control units (ECUs), installed on Boeing 747 and 767 series airplanes. This AD requires installing software version 8.2.Q1 to the engine ECU, which increases the engine's margin to flameout. This AD results from reports of engine flameout events during flight, including reports of events where all engines simultaneously experienced a flameout or other adverse operation. Though the root cause investigation is not yet complete, we believe exposure to ice crystals during flight is associated with these flameout events. We are issuing this AD to provide increased margin to flameout, which will minimize the potential of an all-engine flameout event caused by ice accretion and shedding during flight.
Petition for Exemption; Summary of Petition Received
This notice contains a summary of a petition seeking relief from specified requirements of 14 CFR. The purpose of this notice is to improve the public's awareness of, and participation in, this aspect of FAA's regulatory activities. Neither publication of this notice nor the inclusion or omission of information in the summary is intended to affect the legal status of any petition or its final disposition.
Proposed Modification and Establishment of Restricted Areas and Other Special Use Airspace, Adirondack Airspace Complex; Fort Drum, NY
This action proposes to restructure the restricted areas located in the vicinity of Fort Drum, NY. The Air National Guard (ANG) proposed to redesign the airspace, referred to as the Adirondack Airspace Complex, by making a minor modification to the ceiling of existing restricted area R-5201, and by establishing two new restricted areas: R-5202A and R-5202B. In addition, the ANG proposes to redesign the Military Operations Areas (MOA) associated with the Fort Drum restricted areas. MOAs are not regulatory airspace, but are established administratively. Because the MOAs form an integral part of the Adirondack Airspace Complex, the FAA is also seeking comment on the proposed MOA changes through this NPRM. The ANG proposes these airspace changes to provide additional special use airspace (SUA) needed to conduct high altitude, long-range weapons releases and to allow more realistic training in modern tactics to be conducted in the Adirondack Airspace Complex.
Airworthiness Directives; Boeing Model 747-100B SUD, 747-200B, 747-200C, 747-200F, 747-300, 747-400, 747-400D, 747-400F, and 747SP Series Airplanes
The FAA proposes to adopt a new airworthiness directive (AD) for certain Boeing Model 747-100B SUD, 747-200B, 747-200C, 747-200F, 747-300, 747-400, 747-400D, 747-400F, and 747SP series airplanes. This proposed AD would require reconfiguring the clamps of certain wire bundles and applying insulating sealant to certain fasteners inside the fuel tanks. This proposed AD results from fuel system reviews conducted by the manufacturer. We are proposing this AD to prevent arcing inside the fuel tanks in the event of a lightning strike or high-powered short circuit, which could result in a fuel tank explosion or fire.
Airworthiness Directives; Boeing Model 747-200B, 747-300, 747-400, 747-400D, and 747-400F Series Airplanes Equipped With General Electric CF6-80C2 Engines
The FAA proposes to adopt a new airworthiness directive (AD) for certain Boeing Model 747-200B, 747-300, 747-400, 747-400D, and 747- 400F series airplanes. This proposed AD would require repetitive inspections of the left- and right-hand flipper door assemblies of the engine core cowls for migrated pins and damaged flipper doors, and corrective actions if necessary. Modification of the hinge assemblies terminates the repetitive inspections. This proposed AD results from two reports of missing flipper doors for the engine core cowls. We are proposing this AD to detect and correct migrated hinge pins and damaged flipper doors, which could allow the flipper door to fall off, resulting in the potential for an engine fire to propagate into the flammable leakage zone of the strut and for the amount of fire extinguishing agent reaching the fire to be diluted, and subsequent uncontained fire in the engine strut.
Airworthiness Directives; McDonnell Douglas Model MD-11, MD-11F, DC-10-30 and DC-10-30F (KC-10A and KDC-10), DC-10-40, DC-10-40F, and MD-10-30F Airplanes
The FAA proposes to adopt a new airworthiness directive (AD) for certain McDonnell Douglas Model MD-11, MD-11F, DC-10-30 and DC-10- 30F (KC-10A and KDC-10), DC-10-40, DC-10-40F, and MD-10-30F airplanes. This proposed AD would require measuring the electrical resistance of the bond between the No. 2 fuel transfer pump adapter surface of the fuel tank and the fuel transfer pump housing flange, and performing corrective and other specified actions as applicable. This proposed AD results from a design review of the fuel tank systems. We are proposing this AD to prevent inadequate bonding between the No. 2 fuel transfer pump adapter surface of the fuel tank and the fuel transfer pump housing flange. Inadequate bonding could result in a potential ignition source inside the fuel tank if the fuel transfer pump and structure interface are not submerged in fuel, which, in combination with flammable fuel vapors, could result in a fuel tank explosion and consequent loss of the airplane.
Airworthiness Directives; Boeing Model 737-600, -700, -700C, -800 and -900 Series Airplanes
The FAA proposes to adopt a new airworthiness directive (AD) for certain Boeing Model 737-600, -700, -700C, -800 and -900 series airplanes. This proposed AD would require sealing the fasteners on the front and rear spar inside the main fuel tank and on the lower panel of the center fuel tank, inspecting the wire bundle support installation in the equipment cooling system bays to identify the type of clamp installed and determine whether the Teflon sleeve is installed, and doing related corrective actions if necessary. This proposed AD results from a design review of the fuel tank systems. We are proposing this AD to prevent arcing at certain fuel tank fasteners, in the event of a lightning strike or fault current event, which, in combination with flammable fuel vapors, could result in a fuel tank explosion and consequent loss of the airplane.
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