Federal Aviation Administration March 2006 – Federal Register Recent Federal Regulation Documents
Results 101 - 150 of 175
Petitions for Exemption; Summary of Petitions Received
Pursuant to FAA's rulemaking provisions governing the application, processing, and disposition of petitions for exemption part 11 of Title 14, Code of Federal Regulations (14 CFR), this notice contains a summary of certain petitions 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.
Establishment of High Altitude Area Navigation Routes; South Central United States
This action corrects an error in the geographic coordinate for one navigation fix listed in a final rule published in the Federal Register on February 13, 2006 (71 FR 7409), Airspace Docket No. 05-ASO- 7, FAA Docket No. FAA-2005-22398.
Notice of Intent To Request Approval From the Office of Management and Budget of a Currently Approved Information Collection Activity, Request for Comments; Passenger Facility Charge (PFC) Application
The FAA invites public comments about our intention to request the Office of Management and Budget (OMB) to approve a current information collection. 49 U.S.C. 40117 authorizes airports to impose passenger facility charges (PFC). This program requires public agencies and certain members of the aviation industry to prepare and submit applications and reports to the FAA. This program provides additional funding for airport development, which is needed now and in the future. This collection is covered by Federal Aviation Regulation (FAR) Part 158, including subsections 158.25, 158.35, 158.37, 158.43, 158.63, 158.65, 158.67, and 158.69.
Notice of Intent To Request Approval From the Office of Management and Budget of a Currently Approved Information Collection Activity, Request for Comments; Flight Plans (Domestic/International)
The FAA invites public comments about our intention to request the Office of Management and Budget (OMB) to approve a current information collection. Title 49 U.S.C., paragraph 40103(b) authorizes regulations governing the flight of aircraft. 14 CFR 91 prescribes requirements for filing domestic and international flight plans. Information is collected to provide services to aircraft in flight and protection of persons/property on the ground.
Notice of Intent To Request Approval From the Office of Management and Budget of a Currently Approved Information Collection Activity, Request Comments; Bird/Other Wildlife Strike
The FAA invites public comments about our intention to request the Office of Management and Budget (OMB) to approve a current information collection. Wildlife strike data are collected to develop standards and monitor hazards to aviation. Data identify wildlife strike control requirements and provide in service data on aircraft component failure. The FAA form 5200-7, Bird/Other Wildlife Strike Report, is most often completed by the pilot in charge of an aircraft involved in wildlife collision or by Air Traffic Control Tower personnel, or other airline or airport personnel who have knowledge of the incident.
Notice of Intent To Request Approval From the Office of Management and Budget of a Currently Approved Information Collection Activity, Request for Comments; Recording of Aircraft Conveyances and Security Documents
The FAA invites public comments about our intention to request the Office of Management and Budget (OMB) to approve a current information collection. The information collected includes mortgages submitted by the public for recording against aircraft, engines, propellers, and spare parts locations.
Notice of Intent To Request Approval From the Office of Management and Budget of a Currently Approved Information Collection Activity, Request for Comments; Revisions to Digital Flight Data Recorders
The FAA invites public comments about our intention to request the Office of Management and Budget (OMB) to approve a current information collection. This rule request that certain airplanes be equipped to accommodate additional digital flight data recorder parameters. The revisions require additional information to be collected to enable more thorough accident or incident investigation and to enable industry to predict certain trends and make necessary modifications before an accident or incident happens.
Notice of Intent To Request Approval From the Office of Management and Budget of a Currently Approved Information Collection Activity, Request for Comments; Fractional Aircraft Ownership Programs
The FAA invites public comments about our intention to request the Office of Management and Budget (OMB) to approve a current information collection. Fractional Ownership is a program that offers increased flexibility in aircraft ownership. Owners purchase shares of an aircraft and agree to share their aircraft with others having an ownership share in that same aircraft. Owners agree to put their aircraft into a ``pool'' of other shared aircraft and to lease their aircraft to another owner in that pool. The aircraft owners use a common management company to maintain the aircraft and administer the leasing of the aircraft among the owners.
Special Conditions; Heritage Aviation LTD; Honeywell EFIS 40 on a Cessna 208B, Protection of Systems for High Intensity Radiated Fields (HIRF)
These special conditions are issued to Heritage Aviation LTD, 2617 Aviation Parkway, Grand Prairie, TX 75052, for a supplemental type certificate for the Cessna 208B. These airplanes 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 a Honeywell EFIS 40, 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). This system will interface to other airplane systems also covered by these special conditions. 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.
Proposed Advisory Circular 25-17A Revision, Transport Airplane Cabin Interiors Crashworthiness Handbook
This notice announces the extension of the comment period for proposed advisory circular (AC) 25-17A, which was published in the Federal Register on November 16, 2005 (70 FR 69623), and closes on March 16, 2006. In that notice,the FAA invited public comment on a proposed AC which provides guidance on a means, but not the only means, of compliance with Title 14, Code of Federal Regulations concerning the crashworthiness requirements as applied to cabin interiors. This extension of the comment period is necessary to give all interested persons an opportunity to present their views on the proposed AC.
Airworthiness Directives; Bombardier Model BD-100-1A10 Airplanes
The FAA proposes to adopt a new airworthiness directive (AD) for certain Bombardier Model BD-100-1A10 airplanes. This proposed AD would require an inspection for signs of arcing or heat damage of the electrical connections of the terminal blocks, ground studs, and the end of the wires and surrounding insulation for the windshield and side window anti-ice systems; and repairing any arced or damaged electrical connection. This proposed AD also would require re-torquing electrical connections of the terminal blocks and ground studs for the windshield and side window anti-ice systems. This proposed AD results from an in- service incident involving smoke and odor in the cockpit. We are proposing this AD to prevent loose electrical connections that could arc and overheat, and cause wiring damage of the windshield and side window anti-ice systems. Such wiring damage could result in smoke and/ or fire in the flight compartment.
Airworthiness Directives; McDonnell Douglas Model DC-9-81 (MD-81), DC-9-82 (MD-82), DC-9-83 (MD-83), DC-9-87 (MD-87), and MD-88 Airplanes
This document revises an earlier proposed airworthiness directive (AD), applicable to certain McDonnell Douglas airplane models, that would have required a one-time inspection for chafing or signs of arcing of the wire bundle for the auxiliary hydraulic pump, and other specified and corrective actions, as applicable. This new action revises the proposed rule by proposing that certain airplanes be required to install additional protective sleeving on the upper portion of the auxiliary hydraulic pump wire assembly. The proposed AD results from reports of shorted wires and evidence of arcing on the power cables of the auxiliary hydraulic pump, as well as fuel system reviews conducted by the manufacturer. We are proposing this AD to prevent shorted wires or arcing at the auxiliary hydraulic pump, which could result in loss of auxiliary hydraulic power, or a fire in the wheel well of the airplane. The proposed actions are also intended to reduce the potential of an ignition source adjacent to the fuel tanks, which, in combination with flammable fuel vapors, could result in a fuel tank explosion and consequent loss of the airplane.
Airworthiness Directives; Empresa Brasileira de Aeronautica S.A. (EMBRAER) EMB-120() Airplane Models in Operation
The FAA proposes to adopt a new airworthiness directive (AD) for all Empresa Brasileira de Aeronautica S.A. (EMBRAER) EMB-120() airplane models in operation. This proposed AD would require replacing the protective tubes and conduits of the wiring harnesses of the refueling vent and pilot valves with non-conductive hoses; modifying the harness wiring and supports; and rerouting the harnesses to prevent interference with adjacent strobe light connectors; as applicable. This proposed AD results from a fuel system review conducted by the manufacturer. We are proposing this AD to prevent a potential source of ignition near a fuel tank, which, in combination with flammable fuel vapors, could result in a fuel tank explosion.
Airworthiness Directives; Boeing Model 747-400 and 747-400D Series Airplanes
The FAA proposes to adopt a new airworthiness directive (AD) for certain Boeing Model 747-400 and 747-400D series airplanes. This proposed AD would require replacing specified tie rods of the center overhead stowage bins. This proposed AD results from manufacturer analysis of the overhead storage bin support structure that demonstrated that the capability of certain existing tie rods does not meet emergency landing load requirements. We are proposing this AD to prevent disintegration or detachment of the center overhead stowage bins during an extreme forward load event, which could cause injury to passengers and hinder emergency evacuation procedures.
Airworthiness Directives; Boeing Model 747 Airplanes
The FAA proposes to adopt a new airworthiness directive (AD) for certain Boeing Model 747 airplanes. This proposed AD would require repetitive mid- and low-frequency eddy current inspections for cracks in the overlapped skin panels in the fuselage skin lap joints in sections 41, 42, 44, and 46, and corrective actions if necessary. This proposed AD is prompted by a report indicating that an operator found multiple small cracks in the overlapped skin panels in the fuselage skin lap joints. We are proposing this AD to detect and correct cracks in the overlapped skin panels, which could join together and result in reduced structural capability in the skin and consequent rapid decompression of the airplane.
Airworthiness Directives; Eurocopter France Model EC 155B and B1 Helicopters
This amendment adopts a new airworthiness directive (AD) for the specified Eurocopter France (ECF) model helicopters that requires inspecting an electrical cable bundle for wear. If wear is present, the AD requires installing an airworthy cable bundle and modifying the routing of the electrical cable bundles. This amendment is prompted by reports of a short circuit in the wiring, which led to failure of the normal and emergency landing gear operation modes. The actions specified by this AD are intended to prevent interference of the wiring with the structure resulting in an electrical short circuit, failure of the landing gear to extend, and an emergency landing.
Proposed Revision of Class E Airspace; Atqasuk Edward Burnell Sr. Memorial, AK
This action proposes to revise Class E airspace at Atqasuk Edward Burnell Sr. Memorial Airport, AK., referred to as Atqasuk Airport. Four Standard Instrument Approach Procedures (SIAPs) are being revised for the Atqasuk Airport. Adoption of this proposal would result in establishment of Class E airspace upward from 1,200 feet (ft.) above the surface at Atqasuk, AK.
Aircraft Electrical Load and Power Source Capacity Analysis
This notice announces a Federal Aviation Administration (FAA) proposed policy on recognizing ASTM International's F2490-05 Standard Guide for Aircraft Electrical Load and Power Source Capacity Analysis as an acceptable means of compliance to 14 CFR part 23, 23.1351(a)(2). The Standard Guide provides acceptable methods and procedures to determine electrical system capacity needed to provide worst-case combinations of electrical loads during all phases of airplane operations. This notice is necessary to advise the public of this FAA policy and give all interested persons an opportunity to present their views on it.
Airworthiness Directives; Eurocopter France Model SA-365N, SA-365N1, AS-365N2, and SA-366G1 Helicopters
This amendment supersedes an existing airworthiness directive (AD) that currently applies to Eurocopter France (ECF) Model SA 365N, N1, and AS 365N2 helicopters. That AD currently requires inspecting the main gearbox (MGB) suspension diagonal cross-member (diagonal cross-member) for cracks and replacing it with an airworthy part if any crack is found. This amendment requires more frequent inspections of the diagonal cross-member and adding the Model SA-366G1 helicopters to the applicability. This amendment is prompted by several reports of cracks in the diagonal cross-member. The actions specified by this AD are intended to prevent failure of the diagonal cross-member, pivoting of the MGB, severe vibrations, and a subsequent forced landing.
Receipt of Noise Compatibility Program Modification and Request for Review; Orlando Sanford International Airport, Sanford, FL
The Federal Aviation Administration (FAA) announces that it is reviewing a proposed noise compatibility program modification that was submitted for Orlando Sanford International Airport under the provisions of 49 U.S.C. 47501 et seq. (the Aviation Safety and Noise Abatement Act hereinafter referred to as ``the Act'') and 14 CFR part 150 by the Sanford Airport Authority. This program modification proposes to revise Land Use Element H of the Noise Compatibility Program (NCP) for SFB approved on November 6, 2002, to reflect the incompatible land uses located within the 65 DNL noise contour of the 2004 Noise Exposure Map. This program modification was submitted subsequent to a determination by FAA that the associated noise exposure maps submitted under 14 CFR part 150 for Orlando Sanford International Airport were in compliance with applicable requirements effective June 22, 2005. The proposed noise compatibility program modification will be approved or disapproved on or before August 30 2006.
RTCA Special Committee 202: Portable Electronic Devices
The FAA is issuing this notice to advise the public of a meeting of RTCA Special Committee 202: Portable Electronic Devices.
Approval of Noise Compatibility Program Update for Albany International Airport, Albany, NY
The Federal Aviation Administration (FAA) announces its findings on the noise compatibility program submitted by the Albany County Airport Authority 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 8, 2005 the FAA determined that the noise exposure maps submitted by the Albany County Airport Authority under part 150 were in compliance with applicable requirements. On January 4, 206, the FAA approved the Albany International Airport's updated noise compatibility program. Most of the recommendations of the program update were approved. Four measures were approved as voluntary measures and four were disapproved in part. One measure was disapproved for part 150 purposes.''
Approval of Noise Compatibility Program for the Atlantic City International Airport, Atlantic City, NJ
The Federal Aviation Administration (FAA) announces its findings on the noise compatibility program submitted by the South Jersey Transportation Authority 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 15, 2005 the FAA determined that the noise exposure maps submitted by the South Jersey Transportation Authority under part 150 were in compliance with applicable requirements. On January 11, 2006, the FAA approved the Atlantic City International Airport's noise compatibility program. FAA approved in whole or in part all three proposed measures.
Airworthiness Directives; Pacific Aerospace Corporation Ltd. 750XL Airplanes
The FAA proposes to supersede Airworthiness Directive (AD) 2005-26-53; Amendment 39-14451, which applies to all Pacific Aerospace Corporation Ltd. (PAC) 750XL airplanes. AD 2005-26-53 currently requires you to insert text into the Limitations Section of the Airplane Flight Manual (AFM) that reduces the maximum takeoff weight from 7,500 pounds to 7,125 pounds. This proposed AD results from mandatory continuing airworthiness information (MCAI) issued by the airworthiness authority for New Zealand and the FAA's decision that the actions correct an unsafe condition. Consequently, this proposed AD would require you to remove rivets that have not been fully age hardened and replace them with bolts, washers, and nuts in specific locations where reduction in rivet strength affects overall structural capability. This proposed AD retains the actions of the previous AD until the rivets are replaced with the bolts, washers, and nuts. We are issuing this proposed AD so that wing ultimate load requirements are met. If wing ultimate load requirements are not met, wing failure could result with subsequent loss of control of the airplane.
Airworthiness Directives; Bombardier Model CL-600-2B19 (Regional Jet Series 100 & 440) Airplanes
The FAA is superseding 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 revising the airworthiness limitations section of the Instructions for Continued Airworthiness of the aircraft maintenance manual (AMM) by incorporating procedures for repetitive functional tests of the pilot input lever of the pitch feel simulator (PFS) units. This AD requires new repetitive functional tests of the pilot input lever of the PFS unit, and corrective actions if necessary. After initiating the new tests, this AD also requires removal of the existing procedures for the repetitive functional tests from the AMM. This AD results from a report that the shear pin located in the input lever of two PFS units failed due to fatigue. We are issuing this AD to prevent undetected failure of the shear pin of both PFS units simultaneously, which could result in loss of pitch feel forces and consequent reduced control of the airplane.
Airworthiness Directives; Turbomeca Arriel 2B Series Turboshaft Engines
The FAA proposes to adopt a new airworthiness directive (AD) for Turbomeca Arriel 2B, 2B1, and 2B1A turboshaft engines. This proposed AD would require visually inspecting the splines of the high- pressure (HP) pump drive gear shaft and coupling shaft assembly for wear. This proposed AD results from reports of uncommanded in-flight shutdowns of engines. We are proposing this AD to detect wear on the splines of the HP pump drive gear shaft and coupling shaft assembly, which could interrupt the fuel flow and cause an uncommanded in-flight shutdown of the engine on a single-engine helicopter. The in-flight shutdown of the engine could result in a forced autorotation landing or accident.
Airworthiness Directives; Airbus Model A310-200 and -300 Series Airplanes
The FAA proposes to adopt a new airworthiness directive (AD) for certain Airbus Model A310-200 and -300 series airplanes. This proposed AD would require repetitive inspections for cracking of the flap transmission shafts, and replacing the transmission shafts if necessary. This proposed AD also would provide an optional terminating action for the repetitive inspections. This proposed AD results from reports of longitudinal cracks due to stress corrosion in the transmission shafts between the power control unit (PCU) and the torque limiters of the flap transmission system. We are proposing this AD to detect and correct cracking of the flap transmission shaft, which could compromise shaft structural integrity and lead to a disabled flap transmission shaft and reduced controllability of the airplane.
Airworthiness Directives; Rolls-Royce plc RB211 Trent 500, 700, and 800 Series Turbofan Engines; Correction
This document makes a correction to Airworthiness Directive (AD) 2006-05-01. That AD applies to Rolls-Royce plc RB211 Trent 500, 700, and 800 series turbofan engines. We published AD 2006-05-01 in the Federal Register on March 1, 2006, (71 FR 10415). An incorrect engine model number exists in the compliance section, in two places. This document corrects the engine model number. In all other respects, the original document remains the same.
Airworthiness Directives; Aerospatiale Model ATR42-200, -300, and -320 Airplanes
The FAA is adopting a new airworthiness directive (AD) for certain Aerospatiale Model ATR42-200, -300, and -320 airplanes. This AD requires doing repetitive inspections of the upper arms of the main landing gear (MLG) side braces for missing or inadequately bonded identification plates; doing an ultrasonic inspection of the upper arm of the MLG side brace for any defects and related investigative/ corrective actions if necessary; and replacing the side brace assembly with a modified part. This AD results from an operator who reported experiencing an unlock warning for the MLG on the right side of the airplane. We are issuing this AD to prevent cracking of the upper arms of the side braces of the MLG, which could result in failure of the MLG during landing and possible damage to the airplane and injury to the flightcrew and passengers.
Airworthiness Directives; Boeing Model 747 Airplanes
The FAA is superseding three existing airworthiness directives (ADs) that apply to certain Boeing Model 747 airplanes. The existing ADs currently require repetitive inspections of the body station (BS) 2598 bulkhead, and corrective action if necessary. This new AD adds a requirement to modify the bulkhead, including a one-time inspection and corrective action if necessary, which terminates certain repetitive inspections. This AD also requires a post-modification inspection of the modified area. This AD results from new reports of cracking in all three areas that require inspection in accordance with the existing ADs. We are issuing this AD to prevent fatigue cracking of the BS 2598 bulkhead structure, which could result in inability of the structure to carry horizontal stabilizer flight loads, and loss of controllability of the airplane.
Airworthiness Directives; Boeing Model 777-200 Series Airplanes
The FAA is adopting a new airworthiness directive (AD) for certain Boeing Model 777-200 series airplanes. This AD requires installing a new washer between the lower wing surface and the jam nut of the sump drain valve assembly. This AD results from fuel system reviews conducted by the manufacturer. We are issuing this AD to prevent energy from a lightning strike on the bushing for the sump drain valve from arcing to the inside of the center fuel tank wall, which could create an ignition source in the fuel tank and result in a fuel tank explosion.
Airworthiness Directives; Boeing Model 747-200C, -200F, -400, -400D, and -400F Series Airplanes
The FAA is adopting a new airworthiness directive (AD) for certain Boeing Model 747-200C, -200F, -400, -400D, and -400F series airplanes. This AD requires repetitive inspections for cracks in the overlapping (upper) skin, upper fastener row of the lap joints of the fuselage skin in sections 41, 42, and 46; and related investigative and corrective actions, if necessary. This AD results from fatigue tests and an analysis that identified areas of the fuselage lap joints where fatigue cracks can occur. We are issuing this AD to detect and correct fatigue cracks in the overlapping (upper) skin, upper fastener row of the lap joints of the fuselage skin in sections 41, 42, and 46, which could adversely affect the structural integrity of the airplane.
Airworthiness Directives; BAE Systems (Operations) Limited Model BAe 146 and Model Avro 146-RJ Airplanes
The FAA is adopting a new airworthiness directive (AD) for certain BAE Systems (Operations) Limited Model BAe 146 and Model Avro 146-RJ airplanes. This AD requires a one-time detailed inspection for corrosion of the hinge bracket assembly of the left and right main landing gear (MLG) doors, and corrective action if necessary. This AD results from in-service reports of hinge bracket failures on the MLG doors. We are issuing this AD to prevent failure of the hinge bracket on the MLG door, which could result in separation of the door, consequent structural damage to the airplane, and possible injury to people on the ground.
Airworthiness Directives; Airbus Model A300 B4-600R Series Airplanes, A300 C4-605R Variant F Airplanes, A300 F4-600R Series Airplanes, and Model A310-300 Series Airplanes
The FAA proposes to adopt a new airworthiness directive (AD) for certain Airbus transport category airplanes. This proposed AD would require replacing the existing vent float valve with a new improved vent float valve. This proposed AD results from reports of failure of the vent float valve in the left-hand outboard section of the trimmable horizontal stabilizer. We are proposing this AD to prevent, in the event of a lightning strike to the horizontal stabilizer, sparking of metal parts and debris from detached and damaged float vales, or a buildup of static electricity, which could result in ignition of fuel vapors and consequent fire or explosion.
Airworthiness Directives; Boeing Model 747-100, 747-100B, 747-100B SUD, 747-200B, 747-200C, 747-300, 747-400, 747-400D, and 747SR Series Airplanes
The FAA proposes to supersede an existing airworthiness directive (AD) that applies to certain Boeing Model 747-100 and -200 series airplanes. The existing AD currently requires repetitive inspections for cracking of the station 800 frame assembly, and repair if necessary. This proposed AD would retain the repetitive inspection requirements of the existing AD, but would expand the area to be inspected. This proposed AD also would reduce the initial inspection threshold, remove the adjustment of the compliance threshold and repetitive interval based on cabin differential pressure, and add airplanes to the applicability. This proposed AD results from several reports of cracks of the station 800 frame assembly on airplanes that had accumulated fewer total flight cycles than the initial inspection threshold in the existing AD. We are proposing this AD to detect and correct fatigue cracks that could extend and fully sever the frame, which could result in development of skin cracks that could lead to rapid depressurization of the airplane.
Airworthiness Directives; Sandel Avionics Incorporated Model ST3400 Terrain Awareness Warning System/Radio Magnetic Indicator Approved Under Technical Standard Order(s) C113, C151a, or C151b; Installed on Various Small and Transport Category Airplanes
The FAA proposes to adopt a new airworthiness directive (AD). The new AD is for Sandel Avionics Incorporated Model ST3400 terrain awareness warning systems/radio magnetic indicator (TAWS/RMI) units as described above. This proposed AD would require installing a warning placard on the TAWS/RMI, installing upgraded software in the TAWS/RMI, revising the limitations section of the Airplane Flight Manual (AFM), and removing the placard and AFM revision after installing the software. This proposed AD results from a report that an in-flight bearing error occurred in a Model ST3400 TAWS/RMI, due to a combination of input signal fault and software error. We are proposing this AD to prevent a bearing error, which could lead to an airplane departing from its scheduled flight path, which could result in a reduction in separation from, and a possible collision with, other aircraft or terrain.
Airworthiness Directives; Honeywell International Inc. TPE331 Series Turboprop Engines
The FAA proposes to adopt a new airworthiness directive (AD) for Honeywell International Inc. TPE331 series turboprop engines with certain part numbers of Woodward fuel control assemblies installed. This proposed AD would require initial and repetitive dimensional inspections of the splines between the fuel pump and fuel control, for wear or damage. This proposed AD would also require replacing those fuel control assemblies with serviceable modified fuel control assemblies with improved overspeed protection. This proposed AD results from reports of loss of the drive between the fuel pump and fuel control, leading to engine overspeed, overtorque, overtemperature, uncontained rotor failure, and asymmetric thrust in multi-engine airplanes. We are proposing this AD to prevent rapid, uncommanded, uncontrolled increase in fuel flow to the engine, asymmetric thrust, uncontained rotor failure, and damage to the airplane.
Airworthiness Directives; Saab Model SAAB-Fairchild SF340A (SAAB/SF340A) and SAAB 340B Airplanes
The FAA proposes to adopt a new airworthiness directive (AD) for certain Saab Model SAAB-Fairchild SF340A (SAAB/SF340A) and SAAB 340B airplanes. This proposed AD would require a one-time inspection to see if a faulty uplock axle for the shock strut of the main landing gear (MLG) is installed, and replacing the uplock axle with a new uplock axle if necessary. This proposed AD results from a report of a cracked uplock axle caused by hydrogen embrittlement during the manufacturing process. We are proposing this AD to prevent failure of the uplock mechanism, which, combined with a loss of hydraulic pressure, could result in an uncommanded extension of the MLG.
Airworthiness Directives; Boeing Model 727-200 Series Airplanes Equipped With a No. 3 Cargo Door
The FAA proposes to supersede an existing airworthiness directive (AD) that applies to certain Boeing Model 727-200 series airplanes. The existing AD currently requires initial and repetitive inspections for cracks in the forward frame of the No. 3 cargo door cutout; and corrective actions, if necessary. The existing AD also provides for an optional structural modification, which terminates the repetitive inspections. This proposed AD would reduce the compliance time for the initial inspections and add an optional method of inspection for both the initial and repetitive inspections. This proposed AD would also add initial and repetitive inspections of an additional area and repair if necessary. Additionally, this proposed AD would clarify that the previously optional structural modification is now required by other rulemaking. This proposed AD results from additional reports of cracking in the forward frame of the No. 3 cargo door cutout. We are proposing this AD to detect and correct cracking of the forward frame and fuselage skin of the No. 3 cargo door cutout, which could result in failure of the frame and skin, and consequent rapid decompression of the airplane.
Airworthiness Directives; Raytheon Model Hawker 800XP Airplanes
The FAA proposes to adopt a new airworthiness directive (AD) for certain Raytheon Model Hawker 800XP airplanes. This proposed AD would require inspecting certain bus bars in the DA-A panel to ensure that the bus bars match the panel configuration and clearance is adequate between the bus bars and adjacent components, and performing corrective action if necessary. This proposed AD results from two reports of inadequate clearance between the bus bars in the DA-A panel. We are proposing this AD to prevent insufficient electrical isolation for the electrical bus configuration and inability of the flightcrew to isolate the bus bars in an emergency situation involving a dual generator failure, which could result in extra loads on the main ship batteries and consequent loss of power to the main essential bus.
Airworthiness Directives; Empresa Brasileira de Aeronautica S.A. (EMBRAER) EMB-120( ) Airplane Models in Operation
The FAA proposes to adopt a new airworthiness directive (AD) for all Empresa Brasileira de Aeronautica S.A. (EMBRAER) EMB-120( ) airplane models in operation. This proposed AD would require replacing the de-icing system ejector flow control valves with new, improved control valves having hermetically sealed switches; and rewiring applicable connectors. This proposed AD results from a fuel system review conducted by the manufacturer. We are proposing this AD to prevent a potential source of ignition near a fuel tank, which, in combination with flammable fuel vapors, could result in a fuel tank explosion and consequent loss of the airplane.
Airworthiness Directives; Bombardier Model CL-600-2C10 (Regional Jet Series 700, 701, & 702) Airplanes, Model CL-600-2D15 (Regional Jet Series 705) Airplanes, and Model CL-600-2D24 (Regional Jet Series 900) Airplanes
The FAA proposes to supersede an existing airworthiness directive (AD) that applies to certain Bombardier Model CL-600-2C10 (Regional Jet Series 700 & 701) and CL-600-2D24 (Regional Jet Series 900) series airplanes. The existing AD currently requires repetitive detailed inspections for cracking or deformation, or pulled or missing fasteners, on the lower panel of the left- and right-hand main landing gear (MLG) doors, as applicable, and corrective actions if necessary. This proposed AD would reduce the repetitive inspection interval for certain airplanes. This proposed AD also adds airplanes to the applicability. This proposed AD results from a report of a MLG door departing from an airplane. We are proposing this AD to prevent failure of the lower panel of the MLG door, the lower panel's departure from the airplane, and consequent damage to airplane structure, which could adversely affect the airplane's continued safe flight and landing.
Airworthiness Directives; Empresa Brasileira del Aeronautica S.A. (EMBRAER) Model EMB-120, -120ER, -120FC, -120QC, and -120RT Airplanes
The FAA proposes to adopt a new airworthiness directive (AD) for certain EMBRAER Model EMB-120, -120ER, -120FC, -120QC, and -120RT airplanes. This proposed AD would require replacing the shut-off and crossbleed valves of the bleed air system with new valves having hermetically sealed switches. This proposed AD results from fuel system reviews conducted by the manufacturer. We are proposing this AD to prevent a potential source of ignition near a fuel tank, which, in combination with flammable fuel vapors, could result in a fuel tank explosion and consequent loss of the airplane.
Airworthiness Directives; McDonnell Douglas Model DC-9-10 Series Airplanes; DC-9-20 Series Airplanes; DC-9-30 Series Airplanes; DC-9-40 Series Airplanes; and DC-9-50 Series Airplanes
The FAA is revising an earlier NPRM for an airworthiness directive (AD) that applies to certain McDonnell Douglas transport category airplanes. The original NPRM would have superseded an existing AD that currently requires, among other things, revision of an existing program of structural inspections. The original NPRM proposed to require implementation of a program of structural inspections of baseline structure to detect and correct fatigue cracking in order to ensure the continued airworthiness of these airplanes as they approach the manufacturer's original fatigue design life goal. The original NPRM resulted from a significant number of these airplanes approaching or exceeding the design service goal on which the initial type certification approval was predicated. This new action revises the original NPRM by removing certain service information as acceptable methods of compliance. We are proposing this supplemental NPRM to detect and correct fatigue cracking that could compromise the structural integrity of these airplanes.
Modification of the Norton Sound Low, Woody Island Low and 1234L Offshore Airspace Areas; AK
This action amends the Norton Sound Low, Woody Island Low and 1234L Offshore Airspace Areas in Alaska. Specifically, this action modifies the Norton Sound Low Offshore Airspace Area in the vicinity of the Toksook Bay Airport, Toksook Bay, AK, by lowering the Offshore airspace floor to 1,200 feet mean sea level (MSL) within a 35-mile radius from a defined point just south of the airport. This action also modifies the Woody Island Low and 1234L Offshore Airspace Areas in the vicinity of the Chignik Airport, Chignik, AK, by lowering the Offshore airspace floors to 1,200 feet MSL within a 72.8-mile radius from the Chignik Airport. The additional controlled airspace is necessary for the safety of instrument flight rules (IFR) operations at the Toksook Bay and Chignik Airports.
Establishment of Class E Enroute Domestic Airspace Area, Vandenberg AFB, CA
This action establishes a Class E enroute domestic airspace area, Vandenberg AFB to replace existing Class G uncontrolled airspace.
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