Federal Aviation Administration November 2006 – Federal Register Recent Federal Regulation Documents
Results 51 - 100 of 104
Special Conditions: General Electric Company GEnx Model Turbofan Engines
This action proposes special conditions for General Electric Company (GE) GEnx turbofan engine models. These engines will have a novel or unusual design feature associated with the fan blades. The Administrator has determined that the applicable part 33 airworthiness regulations do not contain adequate or appropriate safety standards for this design feature. These proposed special conditions contain the added safety standards that the Administrator considers necessary to establish a level of safety equivalent to that established by the airworthiness regulations.
Airworthiness Directives; Turbomeca Turmo IV A and IV C Series Turboshaft Engines
The FAA is superseding an existing airworthiness directive (AD) for Turbomeca Turmo IV A and IV C series turboshaft engines. That AD currently requires borescope and eddy current inspections or ultrasonic inspections of centrifugal compressor intake wheel blades for cracks and evidence of corrosion pitting, and replacement with serviceable parts. This AD requires the same actions, but would require borescope inspections at more frequent intervals for certain engines. This AD results from Turbomeca's review of the engines' service experience that determined more frequent borescope inspections are required on engines not modified to the TU 191, TU 197, or TU 224 standard. We are issuing this AD to prevent centrifugal compressor intake wheel blade cracks, which can result in engine in-flight power loss, engine shutdown, or forced landing.
Airworthiness Directives; Boeing Model 757 Airplanes
The FAA is adopting a new airworthiness directive (AD) for certain Boeing Model 757 airplanes. This AD requires installing a control wheel damper assembly at the first officer's drum bracket assembly and aileron quadrant beneath the flight deck floor in section 41; doing a functional test and adjustment of the new installation; and doing related investigative/corrective actions if necessary. For certain airplanes, this AD also requires doing an additional adjustment test of the re-located control wheel position sensor, and an operational test of the flight data recorder and the digital flight data acquisition unit. This AD also requires installing vortex generators (vortilons) on the leading edge of the outboard main flap on certain airplanes. This AD results from several reports that flightcrews experienced unintended roll oscillations during final approach, just before landing. We are issuing this AD to prevent unintended roll oscillations near touchdown, which could result in loss of directional control of the airplane, and consequent airplane damage and/or injury to flightcrew and passengers.
Airworthiness Directives; Air Tractor, Inc. Models AT-502, AT-502A, AT-502B, AT-602, AT-802, and AT-802A Airplanes
The FAA adopts a new airworthiness directive (AD) for certain Air Tractor, Inc. (Air Tractor) Models AT-502, AT-502A, AT-502B, AT- 602, AT-802, and AT-802A airplanes. This AD requires you to repetitively visually inspect the rudder and vertical fin hinge attaching structure (vertical fin skins, spars, hinges, and brackets) for loose fasteners, cracks, and/or corrosion. This AD also requires you to replace any damaged parts found as a result of the inspection and install an external doubler at the upper rudder hinge. This AD results from two reports of in-flight rudder separation from the vertical fin at the upper attach hinge area, and other reports of airplanes with loose hinges, skin cracks, or signs of repairs to the affected area. We are issuing this AD to detect and correct loose fasteners; any cracks in the rudder or vertical fin skins, spars, hinges or brackets; and/or corrosion of the rudder and vertical fin hinge attaching structure. Hinge failure adversely affects ability to control yaw and has led to the rudder folding over in flight. This condition could allow the rudder to contact the elevator and affect ability to control pitch with consequent loss of control.
Airworthiness Directives; BAE Systems (Operations) Limited Model BAe 146 and Avro 146-RJ Airplanes
The FAA is adopting a new airworthiness directive (AD) for all BAE Systems (Operations) Limited Model BAe 146 and Avro 146-RJ airplanes. This AD requires modifying the nose landing gear. This AD results from reports of loss of the nose wheel assembly. We are issuing this AD to prevent the nose wheel nut from loosening, and consequently, the nose wheel assembly detaching from the airplane; and to prevent the nose wheel clamping loads from applying to the machined radius at the root of the stub axle, which could result in damage to the nose landing gear.
Airworthiness Directives; Airbus Model A330 Airplanes
The FAA proposes to supersede an existing airworthiness directive (AD) that applies to certain Airbus Model 330-300 series airplanes. The existing AD currently requires reinforcement of the structure of the center fuselage by installing external stiffeners (butt straps) at frame (FR) 53.3 on the fuselage skin between left-hand (LH) and right-hand (RH) stringer (STR) 13, and related investigative and corrective actions. This proposed AD would require additional reinforcement of the structure of the center fuselage by installing external stiffeners (butt straps) at frame FR53.3 on the fuselage skin between LH and RH STR13, and related investigative and other specified actions. This proposed AD also adds airplanes to the applicability. This proposed AD results from cracking found at the circumferential joint of FR53.3. We are proposing this AD to prevent fatigue cracking of the fuselage, which could result in reduced structural integrity of the fuselage.
Airworthiness Directives; Boeing Model 737 Airplanes
The FAA proposes to supersede an existing airworthiness directive (AD) that applies to all Boeing Model 737 airplanes. The existing AD currently requires installation of a new rudder control system and changes to the adjacent systems to accommodate that new rudder control system. For certain airplanes, this proposed AD would add, among other actions, repetitive tests of the force fight monitor of the main rudder power control unit (PCU), repetitive tests of the standby hydraulic actuation system, and corrective action; as applicable. For those airplanes, this proposed AD also would add, among other actions, replacement of both input control rods of the main rudder PCU and the input control rod of the standby rudder PCU with new input control rods, as applicable, which would end the repetitive tests. For certain other airplanes, this proposed AD would add installation of an enhanced rudder control system in accordance with new service information. This proposed AD results from a report of a fractured rod end on an input control rod of the main rudder PCU. We are proposing this AD to prevent failure of one of the two input control rods of main rudder PCU, which, under certain conditions, could result in reduced controllability of the airplane; and to prevent failure of any combination of two input control rods of the main rudder PCU and/or standby rudder PCU, which could result in loss of control of the airplane. We are also proposing this AD to prevent an uncommanded rudder hardover event and consequent loss of control of the airplane due to inherent failure modes, including single-jam modes, and certain latent failures or jams combined with a second failure or jam.
Filtered Flight Data
The FAA proposes to amend the digital flight data recorder (DFDR) regulations by prohibiting the filtering of some original parameter sensor signals. This proposed rule is based on recommendations issued by the National Transportation Safety Board, and is intended to improve the accuracy and quality of the data recorded on DFDRs and used during accident and incident investigations.
Notice of Intent To Prepare an Environmental Impact Statement (EIS)
The Federal Aviation Administration (FAA), in cooperation with the National Park Service (NPS), began development of an Air Tour Management Plan (ATMP) and associated Environmental Assessment (EA) for Haleakala National Park in February 2003. The ATMP is being established pursuant to the National Parks Air Tour Management Act of 2000 (Pub. L. 106-181) and its implementing regulations contained in Title 14, Code of Federal Regulations, Part 136, National Parks Air Tour Management. The objective of the ATMP is to develop acceptable and effective measures to mitigate or prevent the significant adverse impacts, if any, of commercial air tour operations upon the natural resources, cultural resources, and visitor experiences of Haleakala National Park. The FAA and NPS have now decided to proceed with development of an Environmental Impact Statement (EIS) for this project. This decision is based on information received through the EA scoping process, the environmental analysis completed by the Agencies to date, the consideration of preliminary ATMP alternatives, and through consultations conducted pursuant to Section 106 of the National Historic Preservation Act. By this notice, the FAA and NPS are initiating a 60-day scoping period for this EIS. This timeframe is provided due to the major holidays occurring during this public review period. The FAA and NPS are now inviting the public, agencies, and other interested parties to provide written comments, suggestions, and input regarding the scope of issues and the identification of significant issues to be addressed in the EIS. Comments previously submitted in response to the EA scoping will not need to be re-submitted, as they will be considered as part of the EIS process and record. No additional scoping meetings are scheduled.
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.
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.
Revocation of Class D Airspace; Elko, NV
This action corrects the Document Management System docket number contained in the Direct Final Rule that was published in the Federal Register on Tuesday, July 18, 2006 (71 FR 40651). Airspace Docket No. 06-AWP-11.
Airworthiness Directives; Rolls-Royce, plc RB211 Trent 768-60, 772-60, and 772B-60 Turbofan Engines
The FAA is adopting a new airworthiness directive (AD) for Rolls-Royce, plc (RR) RB211 Trent 768-60, 772-60, and 772B-60 turbofan engines. This AD requires initial and repetitive on-wing or in-shop inspections of the high pressure (HP)/intermediate pressure (IP) turbine bearing oil feed tube heat shield. This AD results from a report that a damaged outer heat shield caused fretting of the oil feed tubes. We are issuing this AD to prevent an uncontained failure of the HP turbine disc and damage to the airplane.
Airworthiness Directives; BAE Systems (Operations) Limited Model BAe 146 Airplanes
The FAA is adopting a new airworthiness directive (AD) for all BAE Systems (Operations) Limited Model BAe 146 airplanes. This AD requires inspecting the three-phase circuit breakers and three-phase circuit breaker panels for discrepancies; and fixing any discrepancy and replacing unserviceable units with new units, if necessary. This AD results from reports of three-phase circuit breakers overheating on in- service airplanes. We are issuing this AD to prevent failure of a three-phase circuit breaker. Such failure could prevent an electrical load from being isolated from its electrical supply, which could result in smoke or fire in the flight deck.
Airworthiness Directives; BAE Systems (Operations) Limited Model BAe 146 and Avro 146-RJ Airplanes
The FAA is adopting a new airworthiness directive (AD) for all BAE Systems (Operations) Limited Model BAe 146 and Avro 146-RJ airplanes equipped with certain hydraulic accumulators. This AD requires inspecting the hydraulic accumulators to identify certain serial numbers, and replacing any affected accumulator with a new or serviceable accumulator. Operators may delay doing the replacement by doing repetitive inspections of the affected hydraulic accumulators for signs of failure (leaking or cracking), and replacing any failed accumulator with a new or serviceable unit. This AD results from a report that one hydraulic accumulator failed in service, which caused the loss of the yellow hydraulic system when the airplane was configured for landing. We are issuing this AD to prevent damage to the pressure skin, failure of certain hydraulic systems, contamination of the cabin with hydraulic mist, increased workload for the flightcrew associated with the loss of one or more hydraulic circuits, and consequent reduced controllability of the airplane.
Petitions for Exemption; Summary of Petitions Received
In accordance with 14 CFR 11.47(c), the FAA has received a petition from the Association of Flight Attendants-CWA, AFL-CIO (AFA- CWA). That petition requested an extension of the comment period for Alaska Airlines, Inc. petition for exemption. That exemption, if granted, would allow Alaska Airlines to eliminate the requirement for a procedure on their B737-400 combination passenger/cargo operations for a flight attendant to enter the pilot compartment in the event a flight crew member becomes incapacitated. The FAA finds that AFA-CWA has a substantive interest in the exemption request and has shown that good cause exists to extend the comment period if consistent with public interest.
Notice of Opportunity for Public Comment on Surplus Property Release at Bruce Campbell Field, Madison, MS
Under the provisions of Title 49, U.S.C. 47153(c), notice is being given that the FAA is considering a request from the City of Madison, MS to waive the requirement that a 8.765-acre parcel of surplus property, located at the Bruce Campbell Field, be used for aeronautical purposes.
Proposed Establishment of Class D Airspace; Castle Airport, Atwater, CA
This notice proposes to establish Class D airspace at Castle Airport, Atwater, CA. A contract Airport Traffic Control Tower (ATCT) is being established at Castle Airport, Atwater, CA, which will meet criteria for Class D airspace. Class D airspace is required when the ATCT is open, and to contain and protect Standard Instrument Approach Procedures (SIAPs) and other Instrument Flight Rules (IFR) operations at the airport. This action would establish Class D airspace extending upward from the surface to 2,500 feet Mean Sea Level (MSL) within a 4.5 nautical mile radius of the airport.
Notice of Opportunity for Public Comment on Surplus Property Release at Henry Tift Myers Airport, Tifton, GA
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 Tifton and Tift County to waive the requirement that approximately 2-acres of surplus property, located at the Henry Tift Myers Airport, be used for aeronautical purposes.
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 June 28, 2006, vol. 71, no. 124, page 36868-36869. The information collected is needed for the applicant's noise certification compliance report in order to demonstrate compliance with part 36.
Notice of Intent To Release Certain Properties From All Terms, Conditions, Reservations and Restrictions of a Quitclaim Deed Agreement Between the Miami-Dade County Board of County Commissioners and the Federal Aviation Administration for the Miami International Airport, Miami, FL
The FAA hereby provides notice of intent to release a portion of airport property (Parcel `2'4.61 acres) at the Miami International Airport, Miami, FL. The release of property will allow the Miami-Dade County Board of County Commissioners to exchange the property for another parcel (Parcel `1'also 4.61 acres and of equal value to the parcel intended for release). Parcel `2' begin a part of LeJeune Garden Estates is located in the Section 32, Township 53 South, Range 43 East, being a part of the amended plat of clear zone 27-L M.I.A. as recorded in plat book 104 page 12, of the Miami-Dade County Public Records. Parcel `1' lies in Section 32, Township 53 South, Range 41 East and being a part of the following plats: Cummings Subdivision plat book 81 page 18, Flight Deck Motel plat book 71 page 26, and LeJeune Garden Estates Section 3 plat book 44, page 11. The parcel is currently designated as non-aeronautical use. The property will be exchanged for Parcel `1' for the purpose of relocating and constructing Perimeter Road improvements, extending and constructing NW. 42nd Court and the necessary bridge to access the Terminal and to construct a new replacement bus maintenance facility. Parcel `2' will be used by the Florida Department of Transportation/Miami-Dade Expressway Authority for a dry storm water retention area required for other roadway improvement projects in the area. The parcels are equal in size and highest/best use, therefore the exchange is considered to be an even exchange with no cash consideration to be paid by either party. This type of exchange complies with Chapter 125.37 of the Florida Statutes and will be published in newspapers of general circulation. Documents reflecting the Sponsor's request are available, by appointment only, for inspection at the Miami-Dade Aviation Department Office and the FAA Airports District Office.
Special Conditions: Boeing Model 737 Series Airplanes; Seats With Non-Traditional, Large, Non-Metallic Panels
This action proposes special conditions for Boeing Model 737 series airplanes. These airplanes 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.
Airworthiness Directives; Dowty Propellers R321/4-82-F/8; R324/4-82-F/9; R333/4-82-F/12; and R334/4-82-F/13 Propellers
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:
Airworthiness Directives; B-N Group Ltd. BN-2, BN-2A, BN-2B, BN-2T, and BN-2T-4R Series (All Individual Models Included in Type Certificate Data Sheet (TCDS) A17EU, Revision 16, Dated December 9, 2002) Airplanes
The FAA adopts a new airworthiness directive (AD) for all B-N Group Ltd. BN-2, BN-2A, BN-2B, BN-2T, and BN-2T-4R series (all individual models included in Type Certificate Data Sheet (TCDS) A17EU, Revision 16, dated December 9, 2002) airplanes. This AD requires you to inspect the horizontal stabilizer attachment bolts and anchor nuts for damage and wear and replace damaged and/or worn parts with new, modified parts. If no damaged or worn parts are found during the inspection, this AD requires you to replace the horizontal stabilizer attachment bolts and anchor nuts at a specified time with new, modified parts. This AD results from mandatory continuing airworthiness information (MCAI) issued by the airworthiness authority for the United Kingdom. We are issuing this AD to detect and correct damaged and/or worn horizontal stabilizer attachment bolts and anchor nuts, which could result in failure of the horizontal stabilizer. This failure could result in loss of control.
Airworthiness Directives; Air Tractor, Inc. Model AT-602 Airplanes
The FAA adopts a new airworthiness directive (AD) for all Air Tractor, Inc. (Air Tractor) Model AT-602 airplanes. This AD requires you to repetitively inspect (using the eddy current method) the wing center splice joint two outboard fastener holes on both of the wing main spar lower caps for fatigue cracking; repair or replace any wing main spar lower cap where fatigue cracking is found; and report any fatigue cracking found. This AD results from fatigue cracking at the wing center splice joint outboard fastener hole in one of the wing main spar lower caps. We are issuing this AD to detect and correct cracks in the wing main spar lower cap, which could result in failure of the spar cap and lead to wing separation and loss of control of the airplane.
Notice of Availability of Draft Advisory Circulars, Other Policy Documents and Proposed Technical Standard Orders
The FAA's Aviation Safety, an organization responsible for the certification, production approval, and continued airworthiness of aircraft, and certification of pilots, mechanics, and others in safety related positions, publishes proposed non-regulatory documents that are available for public comment on the Internet at https://www.faa.gov/ aircraft/draftdocs/.
Approval of Noise Compatibility Program, Columbia Metropolitan Airport, Columbia, SC
The Federal Aviation Administration (FAA) announces its findings on the Noise Compatibility Program submitted by the Richland- Lexington 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 29, 2005, the FAA determined that the noise exposure maps submitted by the Richland-Lexington Airport District under Part 150 were in compliance with applicable requirements. On September 18, 2006, the FAA approved the Columbia Metropolitan Airport noise compatibility program. Most of the recommendations of the program were approved.
Airworthiness Directives; Turbomeca S.A. Arrius 2F Turboshaft Engines
The FAA proposes to revise an existing airworthiness directive (AD) for Turbomeca S.A. Arrius 2F turboshaft engines. That AD currently requires replacing certain O-rings on the check valve piston in the lubrication unit, at repetitive intervals. This proposed AD would require the same actions except reduce the applicability from all Turbomeca S.A. Arrius 2F turboshaft engines, to Turbomeca S.A. Arrius 2F turboshaft engines that have not incorporated modification Tf75. This proposed AD results from Turbomeca S.A. introducing a check valve piston design requiring no O-ring. We are proposing this AD to prevent an uncommanded in-flight shutdown of the engine, which could result in a forced autorotation landing and damage to the helicopter.
Airworthiness Directives; Pilatus Aircraft Ltd. Model PC-7 Airplanes
The FAA adopts a new airworthiness directive (AD) for certain Pilatus Aircraft Ltd. (Pilatus) Model PC-7 airplanes. This AD requires you to do repetitive eddy-current, non-destructive inspections of the nose skin and adjacent structure above the left and right main landing gear bay and repetitive visual inspections of the forward support structure of the floor panel for crack damage. If you find any crack damage, this AD requires you to contact Pilatus to obtain a repair solution and incorporate the repair. This AD results from mandatory continuing airworthiness information (MCAI) issued by the airworthiness authority for Switzerland. We are issuing this AD to detect and correct cracks in the nose skin and adjacent structure above the left and right main landing gear bay and in the forward support structure of the floor panel. Crack propagation in certain areas could lead to failure of the main wing torsion box, which could result in loss of control.
Airworthiness Directives; Diamond Aircraft Industries GmbH Model DA 40 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 the aviation authority of another country to identify and correct an unsafe condition on an aviation product. The MCAI describes the unsafe condition as during production installation of the Garmin G1000 supplemental type certificate (STC) some parts of the installed fuel system indicating system were contaminated with particles from the manufacturing process. This AD requires actions that are intended to address the unsafe condition described in the MCAI.
Airworthiness Directives; Raytheon Aircraft Company Models C90A, B200, B200C, B300, and B300C Airplanes
The FAA adopts a new airworthiness directive (AD) for certain Raytheon Aircraft Company (RAC) (formerly Beech) Models C90A, B200, B200C, B300, and B300C airplanes. This AD 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. This AD results from a report of inspections of several affected airplanes with improperly assembled or damaged flight controls. 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 of the airplane.
Aviation Rulemaking Advisory Committee Meeting on Transport Airplane and Engine Issues; Correction
The Federal Aviation Administration published a document in the Federal Register of October 30, 2006, (71 FR 63378) concerning a notice of public meeting of the FAA's Aviation Rulemaking Advisory Committee (ARAC) to discuss transport airplane and engine (TAE) issues. The document omitted some relevant information.
Random Drug and Alcohol Testing Percentage Rates of Covered Aviation Employees for the Period of January 1, 2007, Through December 31, 2007
The FAA has determined that the minimum random drug and alcohol testing percentage rates for the period January 1, 2007, through December 31, 2007, will remain at 25 percent of safety- sensitive employees for random drug testing and 10 percent of safety- sensitive employees for random alcohol testing.
Airworthiness Directives; Mooney Airplane Company, Inc., (Mooney) Models M20M and M20R Airplanes
We propose to adopt a new airworthiness directive (AD) for certain Mooney Airplane Company, Inc. Models M20M and M20R airplanes. This proposed AD would require you to retorque the upper left and upper right engine mounting hardware as an interim action. This proposed AD would also require you to remove the upper left and upper right engine mount attaching hardware, cut out and remove the upholstery and insulation between the fuselage tubular frame and the firewall, and replace the upper left and upper right engine mount attaching hardware with the new parts kit. This proposed AD results from failure of the engine mount attaching hardware to maintain torque as a result of firewall insulation and upholstery being compressed between the fuselage tubular frame and the firewall at the upper left and upper right engine mount attach points. We are proposing this AD to prevent the upper right and upper left engine mounting hardware from losing torque, which could result in a reduction in engine mount load carrying capability and could lead to engine mount failure.
Airworthiness Directives; Rolls-Royce plc Trent 768-60, Trent 772-60, and Trent 772B-60 Turbofan Engines.
The FAA is adopting a new airworthiness directive (AD) for Rolls-Royce plc Trent 768-60, Trent 772-60, and Trent 772B-60 turbofan engines. This AD requires removing from service certain sets of fan blade annulus fillers at a new life limit. This AD results from six reports of fan annulus filler release into the engine. We are issuing this AD to prevent a dual-engine shutdown on twin-engine airplanes.
Airworthiness Directives; Societe de Motorisations Aeronautiques (SMA) SR305-230 and SR305-230-1 Reciprocating Engines
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: ``Over a period of time, the alteration of one electronic control unit (ECU) electronic component can cause a rapid uncontrolled power increase. Several occurrences have already been reported during engine start or during engine warm-up.'' The event can also occur in flight which can result in loss of control of the airplane. This AD requires actions that are intended to address the unsafe condition described in the MCAI.
Airworthiness Directives; Airbus Model A300 Airplanes, Equipped With General Electric CF6-50 Series Engines
The FAA is adopting a new airworthiness directive (AD) for certain Airbus Model A300 airplanes. This AD requires modifying the airplane and the engine/nacelle to install a third line of defense against inadvertent deployment of the thrust reverser in flight. This AD also requires two other actions that must be accomplished before or concurrently with the modification: installing a structural change in the fan cowl to avoid interference; and installing a dedicated, shielded electrical circuit. This AD results from a report that the manufacturer has developed a third line of defense against the inadvertent deployment of the thrust reverser of Model A300 airplanes that are equipped with General Electric CF6-50 series engines (in accordance with FAA guidelines). We are issuing this AD to prevent inadvertent deployment of the thrust reverser in flight, which could result in reduced controllability of the airplane.
Airworthiness Directives; Cessna Model 750 Airplanes
The FAA is adopting a new airworthiness directive (AD) for all Cessna Model 750 airplanes. This AD requires inspecting the inboard- hinge brackets of the left and right elevators for cracking, and doing related investigative and corrective actions if necessary. This AD results from a report of cracking found on the elevator inboard-hinge brackets. We are issuing this AD to detect and correct cracking of the elevator inboard-hinge brackets, which could result in structural failure of the elevators and consequent loss of control of the airplane.
Airworthiness Directives; Airbus Model A300 B4-600, B4-600R, and F4-600R Series Airplanes, and Model C4-605R Variant F Airplanes (Collectively Called A300-600 Series Airplanes)
The FAA proposes to adopt a new airworthiness directive (AD) for certain Airbus Model A300-600 airplanes. This proposed AD would require an inspection to determine if certain spoiler actuators having certain part numbers are installed, and eventual replacement of all affected actuators. This proposed AD results from failure of a distribution block, which was detected during fatigue qualification tests of certain spoiler actuators. We are proposing this AD to prevent failure of the distribution block, which could result in leakage of the hydraulic fluid that supplies those actuators. This failure could cause failure of one of the three spoiler actuators and the associated hydraulic circuits, which could result in loss of those hydraulic circuits and consequent reduced controllability of the airplane.
Airworthiness Directives; Airbus Model A330 Airplanes and Model A340-200 and -300 Series Airplanes
The FAA is adopting a new airworthiness directive (AD) for certain Airbus Model A330 airplanes and Model A340-200 and -300 series airplanes. This AD requires repetitive detailed inspections for cracking in the aft web of support rib 6 between certain bottom skin stringers on both wings; high frequency eddy current inspections for cracking of the attachment holes of the fuel pipes, and repair if necessary. This AD also provides for an optional modification, which extends a certain inspection threshold, and mandates, for certain airplanes, a new modification of support rib 6 on both wings, which ends the repetitive inspection requirement. This AD results from a report of significant cracking found in the aft web of support rib 6 on both wings. We are issuing this AD to prevent cracking in the aft web of support rib 6, which could result in overloading of adjacent ribs and the surrounding wing structure and consequent reduced structural integrity of the wing.
Airworthiness Directives; Boeing Model 747 Airplanes
The FAA is superseding an existing airworthiness directive (AD), which applies to all Boeing Model 747 series airplanes. That AD currently requires repetitive inspections for cracking of the top and side panel webs and panel stiffeners of the nose wheel well (NWW), and corrective actions if necessary. This new AD reduces the interval for certain repetitive inspections and removes a certain optional inspection. This new AD also requires replacing the NWW side and top panels with new panels, which terminates the repetitive inspections. This AD results from the development of a new modification. We are issuing this AD to prevent fatigue cracks in the top and side panel webs and stiffeners of the NWW, which could compromise the structural integrity of the NWW and could lead to the rapid decompression of the airplane.
Establishment of Class D Airspace; Ft. Riley, KS
This notice amends Part 71 of the Federal Aviation Regulations (14 CFR part 71) by establishing a Class D airspace area extending upward from the surface to and including 3,600 feet above sea level within a 3.7-mile radius of Fort Riley, Marshall Army Airfield, KS. The establishment of an air traffic control tower has made this action necessary.
Eighth Meeting: FTCA Special Committee 203/Minimum Performance Standards for Unmanned Aircraft Systems and Unmanned Aircraft
The FAA is issuing this notice to advise the public of a meeting of RTCA Special Committee 203, Minimum Performance Standards for Unmanned Aircraft Systems and Unmanned Aircraft.
Notice of Passenger Facility Charge (PFC) Approvals and Disapprovals.
The FAA publishes a monthly 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. 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; Pilatus Aircraft Ltd., PC-6 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) 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 the discovery of exfoliation corrosion in the fittings of some PC-6 airplanes. These fittings are installed exterior to the bottom skin of the wing skin. If not corrected, undetected corrosion in this area could lead to failure of the fitting and subsequent loss of control of the airplane. The proposed AD would require actions that are intended to address the unsafe condition described in the MCAI.
Airworthiness Directives; Bombardier Model DHC-8-400 Series Airplanes
The FAA proposes to adopt a new airworthiness directive (AD) for certain Bombardier Model DHC-8-400 series airplanes. This proposed AD would require inspecting to determine the manufacturer's date of certain V-band clamps on the engine exhaust shroud assembly, and doing related investigative/corrective actions if necessary. This proposed AD results from a report of a discrepancy found during a maintenance inspection on a V-band clamp located on the engine exhaust duct shroud. The clamp ends were touching (although the correct fastener torque had been applied), resulting in reduced clamp force on the flanges. We are proposing this AD to prevent vibration in the duct shroud and fretting of the V-band clamp and flanges, which could result in cracking of the flanges and consequent release of hot exhaust gases from the engine tailpipe and damage to adjacent structure. This situation could trigger the fire warning system and result in an in-flight emergency, such as the flightcrew shutting down the engine and activating the fire suppression system.
Airworthiness Directives; Bell Helicopter Textron Model 204B, 205A, 205A-1, 205B, 210, 212, 412, 412CF, and 412EP Helicopters
This document proposes adopting a new airworthiness directive (AD) for Bell Helicopter Textron (Bell) Model 204B, 205A, 205A-1, 205B, 210, 212, 412, 412CF, and 412EP helicopters. The AD would require certain checks and inspections of each tail rotor blade assembly (T/R blade) at specified intervals and repairing or replacing, as applicable, any unairworthy T/R blade. This proposal is prompted by eight reports of T/R blade failures. The actions specified by the proposed AD are intended to prevent failure of a T/R blade and subsequent loss of control of the helicopter.
Airworthiness Directives; Bombardier Model DHC-8-400 Series Airplanes
The FAA proposes to adopt a new airworthiness directive (AD) for certain Bombardier Model DHC-8-400 series airplanes. This proposed AD would require revising the Airworthiness Limitations Items (ALI) of the maintenance requirements manual to require additional inspection requirements of the maintenance requirements manual for certain principal structural elements (PSEs) related to fuselage cutouts and to reduce an inspection threshold for an existing ALI task on the aft entry door. This proposed AD results from data obtained from the manufacturer's fatigue testing. We are proposing this AD to detect and correct fatigue cracking of certain PSEs, which could result in reduced structural integrity of the airplane.
Airworthiness Directives; Pratt & Whitney PW4074, PW4074D, PW4077, PW4077D, PW4084D, PW4090, PW4090-3, and PW4098 Turbofan Engines
The FAA is adopting a new airworthiness directive (AD) for Pratt & Whitney PW4074, PW4074D, PW4077, PW4077D, PW4084D, PW4090, PW4090-3, and PW4098 turbofan engines, with certain front turbine hub part numbers installed. This AD requires a onetime visual inspection of the anti-rotation slots in the front turbine hub, for a machining nonconformance, and its replacement if the inspection failed. This AD results from a report of a crack found in an anti-rotation slot of a front turbine hub, during overhaul shop inspection. The anti-rotation slot geometry was not machined in conformance with the design drawing during manufacture. We are issuing this AD to prevent uncontained engine failure, damage to the airplane, and injury to passengers.
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