Department of Transportation 2007 – Federal Register Recent Federal Regulation Documents
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Airworthiness Directives; Diamond Aircraft Industries GmbH Model DA 42 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:
Atlantic Sea Island Group LLC, Safe Harbor Energy Liquefied Natural Gas Deepwater Port License Application
The Coast Guard and the Maritime Administration announce that they have received an application for the licensing of a natural gas deepwater port, and that the application appears to contain the required information. This notice summarizes the applicant's plans and the procedures that will be followed in considering the application.
Information Collection Available for Public Comments and Recommendations
In accordance with the Paperwork Reduction Act of 1995, this notice announces the Maritime Administration's (MARAD's) intention to request extension of approval for three years of a currently approved information collection.
Requested Administrative Waiver of the Coastwise Trade Laws
As authorized by Public Law 105-383 and Public Law 107-295, the Secretary of Transportation, as represented by the Maritime Administration (MARAD), is authorized to grant waivers of the U.S.- build requirement of the coastwise laws under certain circumstances. A request for such a waiver has been received by MARAD. The vessel, and a brief description of the proposed service, is listed below. The complete application is given in DOT docket MARAD-2007-29039 at https:// dms.dot.gov. Interested parties may comment on the effect this action may have on U.S. vessel builders or businesses in the U.S. that use U.S.-flag vessels. If MARAD determines, in accordance with Public Law 105-383 and MARAD's regulations at 46 CFR part 388 (68 FR 23084; April 30, 2003), that the issuance of the waiver will have an unduly adverse effect on a U.S.-vessel builder or a business that uses U.S.-flag vessels in that business, a waiver will not be granted. Comments should refer to the docket number of this notice and the vessel name in order for MARAD to properly consider the comments. Comments should also state the commenter's interest in the waiver application, and address the waiver criteria given in Sec. 388.4 of MARAD's regulations at 46 CFR part 388.
Requested Administrative Waiver of the Coastwise Trade Laws
As authorized by Public Law 105-383 and Public Law 107-295, the Secretary of Transportation, as represented by the Maritime Administration (MARAD), is authorized to grant waivers of the U.S.- build requirement of the coastwise laws under certain circumstances. A request for such a waiver has been received by MARAD. The vessel, and a brief description of the proposed service, is listed below. The complete application is given in DOT docket MARAD-2007-29040 at https:// dms.dot.gov. Interested parties may comment on the effect this action may have on U.S. vessel builders or businesses in the U.S. that use U.S.-flag vessels. If MARAD determines, in accordance with Public Law 105-383 and MARAD's regulations at 46 CFR Part 388 (68 FR 23084; April 30, 2003), that the issuance of the waiver will have an unduly adverse effect on a U.S.-vessel builder or a business that uses U.S.-flag vessels in that business, a waiver will not be granted. Comments should refer to the docket number of this notice and the vessel name in order for MARAD to properly consider the comments. Comments should also state the commenter's interest in the waiver application, and address the waiver criteria given in Sec. 388.4 of MARAD's regulations at 46 CFR Part 388.
Requested Administrative Waiver of the Coastwise Trade Laws
As authorized by Public Law 105-383 and Public Law 107-295, the Secretary of Transportation, as represented by the Maritime Administration (MARAD), is authorized to grant waivers of the U.S.- build requirement of the coastwise laws under certain circumstances. A request for such a waiver has been received by MARAD. The vessel, and a brief description of the proposed service, is listed below. The complete application is given in DOT docket MARAD-2007-29041 at https:// dms.dot.gov. Interested parties may comment on the effect this action may have on U.S. vessel builders or businesses in the U.S. that use U.S.-flag vessels. If MARAD determines, in accordance with Public Law 105-383 and MARAD's regulations at 46 CFR Part 388 (68 FR 23084; April 30, 2003), that the issuance of the waiver will have an unduly adverse effect on a U.S.-vessel builder or a business that uses U.S.-flag vessels in that business, a waiver will not be granted. Comments should refer to the docket number of this notice and the vessel name in order for MARAD to properly consider the comments. Comments should also state the commenter's interest in the waiver application, and address the waiver criteria given in Sec. 388.4 of MARAD's regulations at 46 CFR Part 388.
Requested Administrative Waiver of the Coastwise Trade Laws
As authorized by Public Law 105-383 and Public Law 107-295, the Secretary of Transportation, as represented by the Maritime Administration (MARAD), is authorized to grant waivers of the U.S.- build requirement of the coastwise laws under certain circumstances. A request for such a waiver has been received by MARAD. The vessel, and a brief description of the proposed service, is listed below. The complete application is given in DOT docket MARAD-2007-29038 at https:// dms.dot.gov. Interested parties may comment on the effect this action may have on U.S. vessel builders or businesses in the U.S. that use U.S.-flag vessels. If MARAD determines, in accordance with Public Law 105-383 and MARAD's regulations at 46 CFR Part 388 (68 FR 23084; April 30, 2003), that the issuance of the waiver will have an unduly adverse effect on a U.S.-vessel builder or a business that uses U.S.-flag vessels in that business, a waiver will not be granted. Comments should refer to the docket number of this notice and the vessel name in order for MARAD to properly consider the comments. Comments should also state the commenter's interest in the waiver application, and address the waiver criteria given in Sec. 388.4 of MARAD's regulations at 46 CFR Part 388.
Transponder Continuous Operation
The FAA is withdrawing the NPRM published on January 14, 2003, that proposed to require airplanes operated in domestic, flag, and supplemental operations to ensure immediate activation and continuous transmission of the designated hijack alert code to air traffic control (ATC) during a hijack situation. After September 11, 2001, the increased threat of hijacking and realization that a plane could be used as a weapon became the basis for the proposed rule. The intent was to provide the flight crew of commercial airplanes with the ability to initiate an immediate national security response in the event of a hijacking. The overwhelming majority of comments opposed the proposal for several reasons. Because of the reasons given, including completed security enhancements to strengthen flightdeck doors, we are withdrawing the proposal. Current regulations ensure an adequate level of aviation security.
Notice of Public Meetings on Notice of Proposed Rulemaking for Major Capital Investment Projects
This notice announces the dates, times, and locations of five public meetings to be held in September and October 2007 concerning a Notice of Proposed Rulemaking (NPRM) on Major Capital Investment Projects. Presentations delivered at these meetings will describe the provisions of the NPRM issued by the Federal Transit Administration (FTA) on August 3, 2007 that proposes to implement the provisions of Safe, Accountable, Flexible, Efficient, Transportation Equity Act: A Legacy for Users (SAFETEA-LU), the Federal surface transportation law.
Michigan Central Railway, LLC-Acquisition and Operation Exemption-Lines of Norfolk Southern Railway Company
By this decision and notice, the Board is revising its previously established schedule for considering the petition of Michigan Central Railway, LLC (MCR) to exempt its acquisition and operation of certain railroad lines of the Norfolk Southern Railway Company (NSR) in Michigan and Indiana, so as to allow 2 more weeks for the submission of comments. The agency is also denying requests to have this proceeding considered under the formal application process of 49 U.S.C. 10901 and 49 CFR Part 1150, rather than under the exemption provisions of 49 U.S.C. 10502(b) and 49 CFR 1121.1.
Six County Association of Governments-Construction and Operation Exemption-Rail Line Between Levan and Salina, Utah
On July 30, 2001, the Six County Association of Governments (SCAOG) filed a Petition for Exemption with the Surface Transportation Board (Board) pursuant to 49 U.S.C. 10502 for authority to construct and operate a new rail line between Juab and Salina, Utah. The project involves approximately 43 miles of new rail line and ancillary facilities in Sanpete, Juab, and Sevier Counties that would connect the Union Pacific Railroad about 16 miles south of Nephi, near Juab, Utah, to a proposed coal transfer terminal facility about 0.5 mile southwest of Salina. The Proposed Action is known as the Central Utah Rail Project (CURP). Because the construction and operation of this project has the potential to result in significant environmental impacts, the Board's Section of Environmental Analysis (SEA) prepared, and issued, a Draft Environmental Impact Statement (EIS) on June 29, 2007. The comment period for the Draft EIS closed on August 22, 2007. Shortly before the end of the public comment period on the Draft EIS, however, SEA determined that additional information on alternatives and wetlands is warranted to ensure that those reviewing the document have all the information they need to comment effectively on the analysis contained in the Draft EIS. Therefore, SEA will prepare and issue Supplemental Information on Alternatives and Wetlands (Supplemental Information) to assist the public in its review of the proposed CURP project and extend the comment period on the Draft EIS. This notice is to inform individuals and agencies interested in or affected by the proposed CURP project that SEA will be issuing Supplemental Information in the near future. At that time, SEA will announce the availability of the Supplemental Information in the Federal Register and on the Board's Web site. SEA will also set the date for when comments on both the Supplemental Information and the Draft EIS are due. After the close of the extended comment period, SEA will prepare a Final EIS that considers comments received on both the Draft EIS and Supplemental Information. When considering whether to grant final approval of the proposed action, the Board will consider the DEIS, Supplemental Information, the Final EIS, and all environmental comments that are received.
Agency Information Collection Activities; Revision of an Approved Information Collection: Accident Recordkeeping Requirements
In accordance with the Paperwork Reduction Act of 1995, FMCSA announces its plan to submit the Information Collection Request (ICR) described below to the Office of Management and Budget (OMB) for review and approval. This information collection concerns the requirement that motor carriers maintain a record of all accidents in which their commercial motor vehicles (CMVs) are involved. The collection is necessary for FMCSA to assess the effectiveness of the safety management controls of motor carriers. On April 23, 2007, FMCSA published a Federal Register notice allowing for a 60-day comment period on the ICR. One comment was received.
Notice of Request for the Extension of a Currently Approved Information Collection
In accordance with the Paperwork Reduction Act of 1995, this notice announces the intention of the Federal Transit Administration (FTA) to request the Office of Management and Budget (OMB) to extend the following currently approved information collection: Charter Service Operations.
Airworthiness Directives; Pratt & Whitney (PW) JT9D-7R4 Series Turbofan Engines
The FAA is adopting a new airworthiness directive (AD) for PW JT9D-7R4 series turbofan engines. This AD requires removing reduced cooling flow 2nd stage high pressure turbine (HPT) vane assemblies, part numbers (P/Ns) 797282, 796972, 800082, 800072, 803182, 803282, and 822582, installed in 2nd stage HPT vane cluster assemblies P/Ns 797592, 797372, 799872, 799782, and 822572. It also requires a visual and a fluorescent penetrant inspection (FPI) of the 2nd stage HPT air seal assembly, P/N 815097. This AD results from a report of an uncontained failure of the 2nd stage HPT air seal assembly, caused by the air seal assembly brace disengaging from the air seal, due to insufficient cooling air flow. We are issuing this AD to prevent uncontained failure of the 2nd stage HPT air seal assembly, leading to engine in-flight shutdown and damage to the airplane.
Airworthiness Directives; Boeing Model 767-200, -300, and -400ER Series Airplanes
The FAA proposes to adopt a new airworthiness directive (AD) for certain Boeing Model 767-200, -300, and -400ER series airplanes. This proposed AD would require installing new relay(s) and wiring to allow the flightcrew to turn off electrical power to the in-flight entertainment (IFE) systems and certain circuit breakers through a utility bus switch, and doing other specified actions. This proposed AD results from an IFE systems review. We are proposing this AD to ensure that the flightcrew is able to turn off electrical power to IFE systems and other non-essential electrical systems through a switch in the flight compartment. The flightcrew's inability to turn off power to IFE systems and other non-essential electrical systems during a non-normal or emergency situation could result in the inability to control smoke or fumes in the airplane flight deck or cabin.
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 repetitive inspections of either the aft side or forward side of the aft pressure bulkhead for oil can conditions or bulges, a one-time inspection of the aft pressure bulkhead to identify any previously installed web repair, and corrective actions if necessary. This proposed AD results from web oil can conditions found on the aft pressure bulkhead of several airplanes. We are proposing this AD to detect and correct oil can conditions, bulges, or previous repairs in the aft pressure bulkhead, which could lead to web cracks and consequently result in rapid decompression of the airplane.
Fees for Unified Carrier Registration Plan and Agreement
This rule establishes initial fees for 2007 and a fee bracket structure for the Unified Carrier Registration Agreement. This action is required under the Uniform Carrier Registration Act of 2005, enacted as Subtitle C of the Safe, Accountable, Flexible, Efficient Transportation Equity Act: A Legacy for Users.
Notice of FAA Approval of the Noise Compatibility Program at Great Falls International Airport, Great Falls, MT
The Federal Aviation Administration (FAA) announces its findings on the noise compatibility program submitted by the Great Falls International Airport under the provisions of 49 U.S.C. (the Aviation Safety and Noise Abatement Act, hereinafter referred to as ``the Act'') and 14 CFT Part 150. These findings are made in recognition of the description of Federal and nonfederal responsibilities in Senate Report No. 96-52 (1980). On February 13, 2007, the FAA determined that the noise exposure maps submitted by the Great Falls International Airport under Part 150 were in compliance with applicable requirements. On August 8, 2007, the FAA approved the Great Falls International Airport noise compatibility program. All of the recommendations of the program, approved by the Airport, were approved in whole or in part by FAA.
Notice of Intent To Rule on Application 07-02-C-00-PFN To Impose a Passenger Facility Charge (PFC) at Panama City/Bay County International Airport, Panama City, FL, and Use the Revenue From a Passenger Facility Charge at the Relocated Panama City/Bay County International Airport, Panama City, FL
The FAA proposes to rule and invites public comment on the application to impose and use the revenue from a PFC at Panama City/Bay County International Airport under the provisions of the 49 U.S.C. 40117 and Part 158 of the Federal Aviation Regulations (14 CFR Part 158).
Airworthiness Directives; Boeing Model 737-300, -400, and -500 Series Airplanes
The FAA proposes to adopt a new airworthiness directive (AD) for all Boeing Model 737-300, -400, and -500 series airplanes. This proposed AD would require revising the FAA-approved maintenance inspection program to include inspections that will give no less than the required damage tolerance rating for each structural significant item (SSI), doing repetitive inspections to detect cracks of all SSIs, and repairing cracked structure. This proposed AD results from a report of incidents involving fatigue cracking and corrosion in transport category airplanes that are approaching or have exceeded their design service objective. We are proposing this AD to maintain the continued structural integrity of the entire fleet of Model 737-300, -400, and - 500 series airplanes.
Notice of Final Federal Agency Actions on Proposed Highway in California
This notice announces actions taken by the FHWA and other Federal agencies that are final within the meaning of 23 U.S.C. 139(l)(1). The actions relate to the proposed U.S. 395 Independence Roadway Improvement Project in the vicinity of the town of Independence from 4.3 kilometers (2.7 miles) south of Mazourka Canyon Road to 0.6 kilometer (0.4 mile) north of Shabbell Lane in Inyo County, State of California. Those actions grant approvals for the project.
Airworthiness Directives; Boeing Model 747-400, 747-400D, and 747-400F Series Airplanes
The FAA is revising an earlier proposed airworthiness directive (AD) for certain Boeing Model 747-400, 747-400D, and 747-400F series airplanes. The original NPRM would have required replacement of an electronic flight instrument system/engine indicating and crew alerting system (EFIS/EICAS) interface unit (EIU) located on the E2-6 shelf of the main equipment center with a new or modified EIU. The original NPRM resulted from two instances where all six integrated display units (IDUs) on the flight deck panels went blank in flight. This action revises the original NPRM by reducing the compliance time for replacing the EIU. We are proposing this supplemental NPRM to prevent loss of the IDUs due to failure of all three EIUs, which could result in the inability of the flightcrew to maintain safe flight and landing of the airplane.
Airworthiness Directives; Boeing Model 737-200C Series Airplanes
The FAA proposes to adopt a new airworthiness directive (AD) for all Boeing Model 737-200C series airplanes. This proposed AD would require revising the FAA-approved maintenance inspection program to include inspections that will give no less than the required damage tolerance rating for each structural significant item (SSI), doing repetitive inspections to detect cracks of all SSIs, and repairing cracked structure. This proposed AD results from a report of incidents involving fatigue cracking and corrosion in transport category airplanes that are approaching or have exceeded their design service objective. We are proposing this AD to maintain the continued structural integrity of the entire fleet of Model 737-200C series airplanes.
Proposed Agency Information Collection Activities; Comment Request
In accordance with the Paperwork Reduction Act of 1995 and its implementing regulations, the Federal Railroad Administration (FRA) hereby announces that it is seeking approval of the following information collection activities. Before submitting these information collection requirements for clearance by the Office of Management and Budget (OMB), FRA is soliciting public comment on specific aspects of the activities identified below.
Revision of Class E Airspace; Hoquiam, WA
This action will revise Class E airspace at Hoquiam, WA. Controlled airspace is necessary to accommodate aircraft using the Area Navigation (RNAV) Global Positioning System (GPS) Standard Instrument Approach Procedure (SIAP) at Bowerman Airport. This will improve the safety of Instrument Flight Rules (IFR) aircraft at the Bowerman Airport, Hoquiam, WA.
Standard Instrument Approach Procedures; Miscellaneous Amendments
This rule amends Standard Instrument Approach Procedures (SIAPs) for operations at certain airports. These regulatory actions are needed because of changes in the National Airspace System, such as the commissioning of new navigational facilities, adding of new obstacles, or changing air traffic requirements. These changes are designed to provide safe and efficient use of the navigable airspace and to promote safe flight operations under instrument flight rules at the affected airports.
Standard Instrument Approach Procedures, and Takeoff Minimums and Obstacle Departure Procedures; Miscellaneous Amendments
This Rule establishes, amends, suspends, or revokes Standard Instrument Approach Procedures (SIAPs) and associated Takeoff Minimums and Obstacle Departure Procedures 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, adding new obstacles, or changing air traffic requirements. These changes are designed to provide safe and efficient use of the navigable airspace and to promote safe flight operations under instrument flight rules at the affected airports.
Establishment of Class E Airspace; Everett, WA
This action will establish Class E surface airspace at Everett, WA. Controlled airspace is necessary to accommodate aircraft executing Special Visual Flight Rules (SVFR) operations at Everett, Snohomish County Airport (Paine Field), Everett, WA. This will improve the safety of SVFR aircraft at the Everett, Snohomish County Airport. Additionally this action also corrects the geographic location of Everett, Snohomish County Airport.
Public Notice for a Change in Use of Aeronautical Property at Sanford Regional Airport, Sanford, ME
The FAA is requesting public comment on the Town of Sanford, Maine's, request to convey approx. 2.58 acres of Airport property from aeronautical use of non-aeronautical use. The property is located on Gatehouse Road, Sanford, Maine. York County Registry of Deeds, book/ page/date 1113/303 12/30/47 & 1116/1 7/15/48. The property was acquired under AIP Project No. 3-23-0044-20. In exchange the airport will receive 2.9 acres of land for aeronautical purposes. The disposition of proceeds from the disposal of airport property will be in accordance with FAA's Policy and Procedures Concerning the Use of Airport Revenue, published in the Federal Register on February 16, 1999.
Establishment of Class E Airspace; Centreville, AL; Correction
This document contains a correction to the final rule (FAA- 2007-28022; 07-ASO-7), which was published in the Federal Register of July 11, 2007, (72 FR 37629), establishing Class E airspace at Centreville, AL. This action corrects an error in the legal description.
Senior Executive Service Performance Review Boards Membership
DOT publishes the names of the persons selected to serve on the various Departmental PRBs as required by 5 U.S.C. 4314(c)(4).
National Surface Transportation Infrastructure Financing Commission
This notice lists the location and time of the fourth, fifth and sixth meetings of the National Surface Transportation Infrastructure Financing Commission.
Agency Information Collection Activities: Notice of Request for Extension of Currently Approved Information Collection
The FHWA has forwarded the information collection request described in this notice to the Office of Management and Budget (OMB) to renew an information collection. We published a Federal Register Notice with a 60-day public comment period on this information collection on June 1, 2007. We are required to publish this notice in the Federal Register by the Paperwork Reduction Act of 1995.
Environmental Impact Statement: New London County, CO
The FHWA is issuing this notice to advise the public that an environmental impact statement will be prepared for proposed transportation improvements to 12.3 miles (21 km) of Interstate 95 (I- 95) in New London County, Connecticut.
Environmental Impact Statement: New London County, CT
The FHWA is issuing this notice to advise the public that an environmental impact statement will be prepared for proposed transpiration improvements to 12.3 miles (21 km) of Interstate 95 (I- 95) in New London County, Connecticut.
Announcement of Project Selections for FY 2007 Discretionary Programs
The U.S. Department of Transportation (DOT) Federal Transit Administration (FTA) announces the discretionary selection of projects to be funded under Fiscal Year (FY) 2007 appropriations for the Bus and Bus Facilities Program and Alternatives Analysis program, in response to Notices of Funding Availability published March 23, 2007, and additional FY 2007 New Starts allocations.
Environmental Impact Statement: High-Speed Ground Transportation from Atlanta, GA to Chattanooga, TN
FRA and FHWA are issuing this notice to advise the public that they will jointly prepare a Tier I Environmental Impact Statement (EIS) with the Georgia Department of Transportation (GDOT) and the Tennessee Department of Transportation (TDOT) to evaluate the environmental and related impacts of constructing and operating high-speed ground transportation (HSGT) service between Atlanta, Georgia and Chattanooga, Tennessee. FRA and FHWA are also issuing this notice to solicit public and agency input into the development of the scope of the EIS and to advise the public that outreach activities conducted by GDOT and its representatives will be considered in the preparation of the EIS.
Proposed Establishment of Class E5 Airspace; Tarkio, MO
This action proposes to establish Class E airspace at Gould Peterson Municipal Airport, Tarkio, MO. The development of an Area Navigation (RNAV) Standard Instrument Approach Procedure (SIAP) to serve flights operating into the Gould Peterson Municipal Airport during Instrumental Flight Rules (IFR) conditions makes this action necessary. Controlled airspace extending upward from 700 feet Above Ground Level (AGL) is needed to contain aircraft executing an approach. The area would be depicted on aeronautical charts for pilot reference.
Noise Compatibility Program Notice; Austin-Bergstrom International Airport, Austin, TX
The Federal Aviation Administration (FAA) announces that it is reviewing a proposed noise compatibility program that was submitted for Austin-Bergstrom 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 City of Austin, Texas. This program was submitted subsequent to a determination by FAA that associated noise exposure maps submitted under 14 CFR part 150 for Austin-Bergstrom International Airport were in compliance with applicable requirements, effective February 15, 2007, and published in the Federal Register February 23, 2007 (Volume 72, Number 36). The proposed noise compatibility program will be approved or disapproved on or before February 10, 2008.
Notice Before Waiver With Respect to Land at Lonesome Pine Airport, Wise, VA
The FAA is publishing notice of proposed release of 0.81 acres of land at the Lonesome Pine Airport, Wise, Virginia to the town of Wise or Wise county Industrial Development Authority (Property Map Parcel 35). The release of land will transfer the responsibility (and potential liability) for maintenance and security of the water tank site to the appropriate governmental entity. Releasing the land does not adversely impact theAirport and the land is not needed for airport development as shown on the Airport Layout Plan. Fair Market Value of the land has been assessed and will be provided to The Cumberlands Airport Commission for Airport and commission operational expenses.
Notice of Meeting of the Grand Canyon Working Group
The Federal Aviation Administration (FAA) and the National Park Service (NPS) are announcing the next meeting of the Grand Canyon Working Group (GCWG). The GCWG is a self-contained group within the National Parks Overflights Advisory Group (NPOAG) that was established pursuant to the National Parks Air Tour Management Act of 2000. This notification provides the date, location, and agenda for the meeting.
Airworthiness Directives; Fokker Model F.28 Mark 0070, 0100, 1000, 2000, 3000, and 4000 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; Boeing Model 767 Airplanes
The FAA is revising an earlier proposed airworthiness directive (AD) for all Boeing Model 767 airplanes. The original NPRM would have required the following actions for the drive mechanism of the horizontal stabilizer: Repetitive detailed inspections for discrepancies and loose ball bearings; repetitive lubrication of the ballnut and ballscrew; repetitive measurements of the freeplay between the ballnut and the ballscrew; and corrective action if necessary. The original NPRM resulted from a report of extensive corrosion of a ballscrew in the drive mechanism of the horizontal stabilizer on a similar airplane model. This action revises the original NPRM by including additional initial and repetitive inspections of the ballscrew-to-ballnut freeplay for certain airplanes, and adding a new compliance time for those inspections. We are proposing this supplemental NPRM to prevent an undetected failure of the primary load path for the ballscrew in the drive mechanism of the horizontal stabilizer and subsequent wear and failure of the secondary load path, which could lead to loss of control of the horizontal stabilizer and consequent loss of control of the airplane.
Airworthiness Directives; Aeromot-Industria Mecanico Metalurgica Ltda. Model AMT-100/200/200S/300 Gliders
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:
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