Federal Aviation Administration July 2010 – Federal Register Recent Federal Regulation Documents
Results 51 - 100 of 145
Airworthiness Directives; The Boeing Company Model 767-200, -300, and -300F Series Airplanes Powered by General Electric or Pratt & Whitney Engines
The FAA is superseding an existing airworthiness directive (AD) that applies to certain Model 767-200, -300, and -300F series airplanes. The existing AD currently requires repetitive inspections to detect discrepancies of the 8 aft-most fastener holes in the horizontal tangs of the midspar fitting of the strut, and corrective actions if necessary. The existing AD also requires repetitive inspections for cracks of the closeout angle that covers the 2 aft-most fasteners in the lower tang of the midspar fitting, and related investigative and corrective actions if necessary. The existing AD also provides an optional terminating action for the repetitive inspections. This new AD reduces the compliance times for doing the inspections. This AD results from reports of cracks in the midspar fitting tangs. We are issuing this AD to detect and correct fatigue cracking in the primary strut structure and reduced structural integrity of the strut, which could result in separation of the strut and engine.
Airworthiness Directives; Airbus Model A330-200 and -300 Series Airplanes, and A340-200, -300, -500, and -600 Series Airplanes
We are adopting a new airworthiness directive (AD) for the products listed above. This AD results from mandatory continuing airworthiness information (MCAI) 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; Empresa Brasileira de Aeronautica S.A. (EMBRAER) Model ERJ 170 and ERJ 190 Airplanes
We are superseding an existing airworthiness directive (AD) for the products listed above. This AD results from mandatory continuing airworthiness information (MCAI) originated by an aviation authority of another country to identify and correct an unsafe condition on an aviation product. The MCAI for EMBRAER Model ERJ 170 airplanes describes the unsafe condition as:
Safe, Efficient Use and Preservation of the Navigable Airspace
This action amends the regulations governing objects that may affect the navigable airspace. These rules have not been revised in several decades, and the FAA has determined it is necessary to update the regulations, incorporate case law and legislative action, and simplify the rule language. These changes will improve safety and promote the efficient use of the National Airspace System.
Airworthiness Directives; Sikorsky Aircraft Corporation (Sikorsky) Model S-92A Helicopters
This document proposes adopting a new airworthiness directive (AD) for Sikorsky Model S-92A helicopters. This proposal would require revising the airworthiness limitations section of the Instructions for Continued Airworthiness (ICA) to reduce the life limit of the main gearbox housing and replacing any main gearbox housing that exceeds the life limit. This proposal is prompted by a fatigue analysis conducted after a helicopter was found with a severed main gearbox mounting foot pad (foot pad) that failed due to fatigue. The actions specified by this proposed AD are intended to prevent failure of the main gearbox mounting housing foot pad, loss of the main gearbox, and subsequent loss of control of the helicopter.
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.
Standard Instrument Approach Procedures, and Takeoff Minimums and Obstacle Departure Procedures; Miscellaneous Amendments
This 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.
Prohibition Against Certain Flights Within the Territory and Airspace of Afghanistan; Supplemental Regulatory Flexibility Analysis
This document announces the availability of and request for comments on the Supplemental Regulatory Flexibility Analysis for the previously published proposed rule entitled, Prohibition Against Certain Flights Within the Territory and Airspace of Afghanistan.
Petition for Exemption; Summary of Petition Received
This notice contains a summary of a petition seeking relief from specified requirements of 14 CFR. The purpose of this notice is to improve the public's awareness of, and participation in, this aspect of FAA's regulatory activities. Neither publication of this notice nor the inclusion or omission of information in the summary is intended to affect the legal status of the petition or its final disposition.
Certification of Aircraft and Airmen for the Operation of Light-Sport Aircraft; Modifications to Rules for Sport Pilots and Flight Instructors With a Sport Pilot Rating; OMB Approval of Information Collection
This document announces the Office of Management and Budget's (OMB's) approval of the information collection requirement contained in the FAA's final rule, ``Certification of Aircraft and Airmen for the Operation of Light-Sport Aircraft; Modifications to Rules for Sport Pilots and Flight Instructors With a Sport Pilot Rating,'' which was published on February 1, 2010.
Proposed Amendment of Class E Airspace; San Clemente, CA
This action proposes to modify Class E airspace at San Clemente, CA. Decommissioning of the San Clemente Island Non- Directional Radio Beacon (NDB) at San Clemente Island NALF (Frederick Sherman Field) has made this action necessary for the safety and management of Instrument Flight Rules (IFR) operations at the airport. This action also makes a minor adjustment to the geographic coordinates of the airport.
Proposed Amendment of Class E Airspace; Pendleton, OR
This action proposes to modify Class E airspace at Pendleton, OR. Decommissioning of the Foris Non-Directional Radio Beacon (NDB) at Eastern Oregon Regional Airport at Pendleton has made this action necessary for the safety and management of Instrument Flight Rules (IFR) operations at the airport. This action also would reflect the new name of the airport.
Re-Registration and Renewal of Aircraft Registration
This final rule amends the FAA's regulations concerning aircraft registration. Over a 3-year period, this rule will terminate the registration of all aircraft registered before October 1, 2010, and will require the re-registration of each aircraft to retain U.S. civil aircraft status. These amendments also establish a system for a 3-year recurrent expiration and renewal of registration for all aircraft issued registration certificates on or after October 1, 2010. This final rule amends the FAA's regulations to provide standards for the timely cancellation of registration numbers (N-numbers) for unregistered aircraft. This final rule makes other minor changes to establish consistency and ensure the regulations conform to statute or current Registry practices. These amendments will improve the accuracy of the Civil Aviation Registry database and will ensure that aircraft owners provide information to maintain accurate registration records. These amendments respond to the concerns of law enforcement and other government agencies to provide more accurate, up-to-date aircraft registration information.
Establishment of Class E Airspace; Syracuse, KS
This action establishes Class E airspace for Syracuse, KS, to accommodate Area Navigation (RNAV) Standard Instrument Approach Procedures (SIAPs) at Syracuse-Hamilton County Municipal Airport. The FAA is taking this action to enhance the safety and management of Instrument Flight Rule (IFR) operations at the airport.
Establishment of Class E Airspace; Paynesville, MN
This action establishes Class E airspace for Paynesville, MN, to accommodate Area Navigation (RNAV) Standard Instrument Approach Procedures (SIAPs) at Paynesville Municipal Airport. The FAA is taking this action to enhance the safety and management of Instrument Flight Rule (IFR) operations at the airport.
Establishment of Class D Airspace; San Marcos, TX
This action establishes Class D airspace for San Marcos Municipal Airport, San Marcos, TX. Establishment of an air traffic control tower has made this action necessary to enhance the safety and management of Instrument Flight Rule (IFR) operations at the airport. A minor change in the airport descriptor also has been made.
Establishment of Class E Airspace; Colebrook, NH
This action proposes to establish Class E Airspace at Colebrook, NH, to accommodate a new Area Navigation (RNAV) Global Positioning System (GPS) Special Standard Instrument Approach Procedure (SIAP) serving the Upper Valley Connecticut Hospital. This action would enhance the safety and airspace management of Instrument Flight Rules (IFR) operations in the National Airspace System.
Proposed Establishment and Modification of Class E Airspace; Deer Park, WA
This action proposes to establish Class E surface airspace and modify existing Class E airspace at Deer Park Airport, Deer Park, WA, to accommodate aircraft using the existing Area Navigation (RNAV) Global Positioning System (GPS) Standard Instrument Approach Procedures (SIAPs) at Deer Park Airport. The FAA is proposing this action to enhance the safety and management of aircraft operations at the airport.
Noise Exposure Map Notice New Smyrna Beach Municipal Airport, New Smyrna Beach, FL
The Federal Aviation Administration (FAA) announces its determination that the Noise Exposure Maps submitted by the City of New Smyrna Beach for New Smyrna Beach Municipal Airport under the provisions of 49 U.S.C. 47501 et seq. (Aviation Safety and Noise Abatement Act) and 14 CFR Part 150 are in compliance with applicable requirements.
Proposed Amendment of Class E Airspace; Arco, ID
This action proposes to amend Class E airspace at Arco, ID. Decommissioning of the Arco-Butte County Non-Directional Beacon (NDB) at Arco-Butte County Airport has made this action necessary for the safety and management of Instrument Flight Rules (IFR) operations at Arco-Butte County Airport. This action also would adjust the geographic coordinates of the airport.
Notice of Intent To Rule on Request To Release Airport Property at Fort Smith Regional Airport, Fort Smith, AR
The FAA proposes to rule and invites public comment on the release of land at Fort Smith Regional Airport under the provisions of Title 49, U.S.C. Section 47153(c).
Airworthiness Directives; Robinson Helicopter Company (Robinson) Model R22, R22 Alpha, R22 Beta, and R22 Mariner Helicopters, and Model R44, and R44 II Helicopters
This document proposes adopting a new airworthiness directive (AD) for Robinson Model R22, R22 Alpha, R22 Beta, and R22 Mariner helicopters, and Model R44 and R44 II helicopters. The AD would require visually inspecting each tail rotor (T/R) control pedal bearing block support (support) for a crack, measuring the thickness of each uncracked support, installing support safety tabs on certain supports, and replacing supports of a certain thickness during overhaul. This proposal is prompted by two reports of Model R22 helicopters experiencing broken supports during flight, which resulted in the T/R control pedals becoming jammed. The actions specified by the proposed AD are intended to prevent the supports from breaking, which can bind the T/R control pedals, resulting in a reduction of yaw control and subsequent loss of control of the helicopter.
Revision of Class E Airspace; Monterey, CA
This action revises Class E airspace at Monterey Peninsula Airport, Monterey, CA. The FAA is taking this action in response to a request from the National Aeronautical Charting Office (NACO) to better clarify the legal description of controlled airspace designated as an extension to Class C surface area.
Establishment of Class E Airspace; Monterey, CA
This action will establish Class E airspace at Monterey, CA, to accommodate aircraft using a new Area Navigation (RNAV) Required Navigation Performance (RNP) Standard Instrument Approach Procedures (SIAPs) at Monterey Peninsula Airport. This action will improve the safety and management of Instrument Flight Rules (IFR) operations at the airport.
Amendment of Class E Airspace; Bozeman, MT
This action will amend Class E airspace at Bozeman, MT, to accommodate aircraft using a new VHF Omni-Directional Radio Range (VOR) Standard Instrument Approach Procedures (SIAPs) at Gallatin Field Airport. This will improve the safety and management of Instrument Flight Rules (IFR) operations at the airport.
Amendment of Class D and E Airspace; Everett, WA
This action will amend Class D and E airspace at Snohomish County Airport (Paine Field), Everett, WA, by updating the geographic coordinates of the airport, and removes the operating hours established by a Notice to Airmen (NOTAM) for the Class E surface area airspace. This action enhances the safety and management of Instrument Flight Rules (IFR) operations at Snohomish County Airport (Paine Field).
Airworthiness Directives; Pratt & Whitney PW4000 Series Turbofan Engines
The FAA proposes to adopt a new airworthiness directive (AD) for certain Pratt & Whitney PW4000 series turbofan engines. This proposed AD would require initial and repetitive borescope inspections (BSI) or fluorescent penetrant inspections (FPI) for cracks in the anti-vortex tube (AVT) shelf slots on the 10th stage disk of the high- pressure compressor (HPC) drum rotor disk assembly. This proposed AD results from 47 reports received since 2007 of HPC 10th stage disks found cracked in the AVT shelf slots during shop visit inspections. We are proposing this AD to prevent failure of the HPC 10th stage disk, uncontained engine failure, and damage to the airplane.
IFR Altitudes; Miscellaneous Amendments
This document adopts miscellaneous amendments to the required IFR (instrument flight rules) altitudes and changeover points for certain Federal airways, jet routes, or direct routes for which a minimum or maximum en route authorized IFR altitude is prescribed. This regulatory action is needed because of changes occurring in the National Airspace System. These changes are designed to provide for the safe and efficient use of the navigable airspace under instrument conditions in the affected areas.
Notice of Intent To Request Approval From the Office of Management and Budget of a New Information Collection Activity, Request for Comments; AST Collection of Voluntary Lessons Learned From External Sources
The FAA invites public comments about our intention to request the Office of Management and Budget (OMB) to approve a new information collection. The FAA/AST will collect lessons learned from members of the commercial space industry in order to carry out the safety responsibilities in 49 U.S.C Chapter 701 Section 70103(c).
Establishment of Class E Airspace; Kemmerer, WY
This action will establish Class E airspace at Kemmerer, WY to accommodate aircraft using a new Area Navigation (RNAV) Global Positioning System (GPS) Standard Instrument Approach Procedures (SIAPs) at Kemmerer Municipal Airport. This will improve the safety and management of Instrument Flight Rules (IFR) operations at the airport.
Airworthiness Directives; Airbus Model A330-200 and A330-300 Series Airplanes
We propose to adopt a new airworthiness directive (AD) for the products listed above. This proposed AD results from mandatory continuing airworthiness information (MCAI) originated by an aviation authority of another country to identify and correct an unsafe condition on an aviation product. The MCAI describes the unsafe condition as: An A330 experienced an uncommanded engine 1 in flight spool down, which occurred while applying fuel gravity feed procedure, in response to low pressure indications from all fuel boost pumps, in both left and right wings. The investigations revealed that the wing tank pressure switches P/N (part number) HTE69000-1 had frozen due to water accumulated in their external part, causing spurious low pressure indications. As per procedure, the main pumps are then switched off, increasing the level of unavailable fuel. This, in combination with very low fuel quantities or another independent trapped fuel failure scenarios, can lead to fuel starvation on the affected engine(s). The proposed AD would require actions that are
Airworthiness Directives; Airbus Model A310 Series Airplanes
We propose to adopt a new airworthiness directive (AD) for the products listed above that would supersede an existing AD. This proposed AD results from mandatory continuing airworthiness information (MCAI) originated by an aviation authority of another country to identify and correct an unsafe condition on an aviation product. The MCAI describes the unsafe condition as: Analysis performed in the frame of the Extended Service Goal has led Airbus to modify the inspection programme [modification of thresholds, intervals and associated configurations] which is currently required by DGAC (Direction G[eacute]n[eacute]rale de l'Aviation Civile) France AD F-2005-001. This modified inspection programme is necessary to detect and prevent damage associated with a structural fatigue phenomenon of the rear spar internal angle and the tee fitting located in the centre wing box. This condition, if not corrected, could affect the structural integrity of the centre wing box. The unsafe condition is reduced structural integrity of the wings. The proposed AD would require actions that are
Airworthiness Directives; The Boeing Company Model 757 Airplanes, Model 767 Airplanes, and Model 777-200 and -300 Series Airplanes
We are adopting a new airworthiness directive (AD) for certain Model 757 airplanes, Model 767 airplanes, and Model 777-200 and -300 series airplanes. This AD requires repetitive inspections for damage of the electrical terminal at the left and right flightdeck window 1, and corrective actions if necessary. This AD also allows for replacing the flightdeck window 1 with a new improved flightdeck window equipped with different electrical connections, which terminates the repetitive inspections for that flightdeck window 1. This AD results from several reports of electrical arcs at the terminal blocks of the electrically heated flightdeck window 1. We are issuing this AD to prevent smoke and fire in the cockpit, which could lead to loss of visibility, and injuries to or incapacitation of the flightcrew.
Airworthiness Directives; Thielert Aircraft Engines GmbH Model TAE 125-01 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:
Airworthiness Directives; McCauley Propeller Systems Model 4HFR34C653/L106FA Propellers
The FAA is adopting a new airworthiness directive (AD) for McCauley Propeller Systems model 4HFR34C653/L106FA propellers. This AD requires a onetime fluorescent penetrant inspection (FPI) and eddy current inspection (ECI) of the propeller hub for cracks. This AD results from reports of 10 hubs found cracked during propeller overhaul. We are issuing this AD to prevent failure of the propeller hub, which could cause blade separation, damage to the airplane, and loss of control of the airplane.
Airworthiness Directives; Airbus Model A330-200 and -300, and Model A340-200, -300, -500 and -600 Series Airplanes
We are adopting a new airworthiness directive (AD) for the products listed above. This AD results from mandatory continuing airworthiness information (MCAI) 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; The Boeing Company Model 747-100, 747-100B, 747-100B SUD, 747-200B, 747-200C, 747-200F, 747-300, 747-400, 747SR, and 747SP Series Airplanes
We are adopting a new airworthiness directive (AD) for certain Model 747-100, 747-100B, 747-100B SUD, 747-200B, 747-200C, 747-200F, 747-300, 747-400, 747SR, and 747SP series airplanes. This AD requires repetitive detailed inspections of certain overwing intercostal webs, and related investigative and corrective actions if necessary. This AD results from reports of cracks in overwing intercostal webs. We are issuing this AD to detect and correct such cracking, which could grow and result in a severed intercostal. If an intercostal is severed, cracks could develop in the adjacent frame structure and skin, resulting in a rapid loss of cabin pressure.
Airworthiness Directives; Bombardier, Inc. Model DHC-8-400, -401, and -402 Airplanes
We are superseding an existing airworthiness directive (AD) for the products listed above. This AD results from mandatory continuing airworthiness information (MCAI) originated by an aviation authority of another country to identify and correct an unsafe condition on an aviation product. The MCAI describes the unsafe condition as:
Airworthiness Directives; Aircraft Industries a.s. (Type Certificate G60EU Previously Held by LETECKÉ ZÁVODY a.s. and LET Aeronautical Works) Model L-13 Blanik Gliders
We are adopting a new airworthiness directive (AD) for the products listed above. This AD results from mandatory continuing airworthiness information (MCAI) issued by the 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; The Boeing Company Model 777 Airplanes
We are adopting a new airworthiness directive (AD) for certain Model 777 airplanes. This AD requires inspecting the bolt, nut, and downstop of the slat track assembly to determine if the bolt, nut, or stops are missing and to determine if the thread protrusion of the bolt from the nut is within specified limits and parts are correctly installed, and related investigative and corrective actions if necessary. For certain airplanes, this AD also requires inspecting the slat cans at the outboard slat number 3 and 12 outboard main track locations for holes and wear damage, and corrective actions if necessary; and replacing the downstop hardware for the outboard slats number 3 and 12 outboard and inboard main track locations. This AD results from a report of a hole in the inboard main track slat can for outboard slat number 12 on a Model 777 airplane. The hole was caused when the bolt securing the downstop migrated out of the fitting and contacted the slat can. We are issuing this AD to detect and correct damage to the outboard slat main track slat cans, which can allow fuel leakage into the fixed wing leading edge in excess of the capacity of the draining system. Excess fuel leakage could result in an uncontained fire.
Airworthiness Directives; Airbus Model A330-200 and -300 Airplanes and Model A340-200, -300, -500, and -600 Airplanes
We are superseding an existing airworthiness directive (AD) for the products listed above. This AD results from mandatory continuing airworthiness information (MCAI) originated by an aviation authority of another country to identify and correct an unsafe condition on an aviation product. The MCAI describes the unsafe condition as:
Airworthiness Directives; Bombardier, Inc. Model DHC-8-400 Series Airplanes
We are adopting a new airworthiness directive (AD) for the products listed above. This AD results from mandatory continuing airworthiness information (MCAI) originated by an aviation authority of another country to identify and correct an unsafe condition on an aviation product. The MCAI describes the unsafe condition as:
Sixth Meeting-Special Committee 222: Inmarsat Aeronautical Mobile Satellite (Route) Services
The FAA is issuing this notice to advise the public of a meeting of RTCA Special Committee 222: Inmarsat Aeronautical Mobile Satellite (Route) Services.
Use of One Additional Portable Oxygen Concentrator Device on Board Aircraft
This action amends Special Federal Aviation Regulation 106 (SFAR 106), Rules for Use of Portable Oxygen Concentrator Systems on Board Aircraft, to allow for the use of one additional portable oxygen concentrator (POC) device on board aircraft, provided certain conditions in the SFAR are met. This action is necessary to allow all POC devices deemed acceptable by the FAA for use in air commerce to be available to the traveling public in need of oxygen therapy. When this rule becomes effective, there will be 12 different POC devices the FAA finds acceptable for use on board aircraft. Passengers will be able to carry these devices on board the aircraft and use them with the approval of the aircraft operator.
Approval of Noise Compatibility Program for Modesto City-County Airport, Modesto, CA
The Federal Aviation Administration (FAA) announces its findings on the noise compatibility program submitted by the City of Modesto under the provisions of Title I of the Aviation Safety and Noise Abatement Act, as amended, (Pub. L. 96-193) (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 January 9, 2009, the FAA determined that the noise exposure maps submitted by the City of Modesto under Part 150 were in compliance with applicable requirements.
Airworthiness Directives; Eclipse Aerospace, Inc. Model EA500 Airplanes
We propose to adopt a new airworthiness directive (AD) for certain Eclipse Aerospace, Inc. (Eclipse) Model EA500 airplanes. This proposed AD would require incorporating changes to the electronic flight information system and the airplane flight manuals. This proposed AD results from reports of uncommanded changes to the communications radio frequency, altitude preselect, and/or transponder codes. We are proposing this AD to correct faulty integration of hardware and software, which could result in unannunciated, uncommanded changes in communications radio frequency, transponder codes, and altitude preselect settings. These uncommanded changes could result in loss of communication with air traffic control due to improper communications frequency, autopilot level off at the incorrect altitude, or air traffic control loss of proper tracking of the aircraft.
Airworthiness Directives; The Boeing Company Model 747-100, 747-100B, 747-100B SUD, 747-200B, 747-200C, 747-200F, 747-300, 747SR, and 747SP Series Airplanes
The FAA proposes to supersede an existing airworthiness directive (AD) that applies to certain Model 747-100, 747-100B, 747- 100B SUD, 747-200B, 747-200C, 747-200F, 747-300, 747SR, and 747SP series airplanes. The existing AD requires repetitive inspections and torque checks of the hanger fittings and strut forward bulkhead of the forward engine mount and adjacent support structure, and visual inspections of the internal angle and external bulkhead chord and detailed inspection of internal angles, and corrective actions if necessary. The existing AD also provides for an optional inspection. This proposed AD would also require additional inspections of airplanes that have hi-lok bolts and collars at all of the Group B fastener locations, except fastener 13, and related investigative and corrective actions. This proposed AD would require repetitive inspections of the internal angle and corrective actions, if necessary. This proposed AD also would require, for certain airplanes, replacing the fasteners, which terminates certain repetitive inspections. This proposed AD results from the reports of undertorqued or loose fasteners, a cracked bulkhead chord, and a fractured back-up angle. We are proposing this AD to prevent loose fasteners and/or damaged or cracked hanger fittings, back-up angles, and bulkhead of the forward engine mount, which could lead to failure of the hanger fitting and bulkhead and consequent separation of the engine from the airplane.
Airworthiness Directives; The Boeing Company Model 747 Airplanes
We propose to adopt a new airworthiness directive (AD) for all Model 747 airplanes. This proposed AD would require repetitive inspections for cracking in the body skin around the aft corners of the nose wheel well; for certain airplanes, repetitive inspections for cracking in the skin splice plate at the aft corners of the nose wheel well; and related investigative and corrective actions if necessary. This proposed AD would also require repetitive post-modification inspections for cracking in the body skin and the skin splice plate; for certain airplanes, an inspection for steel cross-shaped doublers on the larger aluminum doublers; and corrective action if necessary. This proposed AD would also require repetitive surface high frequency eddy current (HFEC) inspections of a certain bulkhead outer chord, skin splice plate, and outer chord radius filler for cracking; repetitive detailed inspections for cracking of the bulkhead frame web and body skin; and corrective actions if necessary. This proposed AD would provide for optional terminating action for certain repetitive inspections. This proposed AD results from reports of cracking of the fuselage skin and adjacent internal skin splice plate at the left and right nose wheel well aft corners, and the outer chord of the body station (BS) 400 bulkhead. We are proposing this AD to detect and correct cracking of the fuselage skin or splice plate, which, together with cracking of the bulkhead outer chord, could result in large skin cracks and subsequent in-flight rapid decompression of the airplane.
Airworthiness Directives; Arrow Falcon Exporters, Inc. (previously Utah State University); AST, Inc. (previously Firefly Aviation Helicopter Services, and Erickson Air-Crane); Rotorcraft Development Corporation (previously Garlick Helicopters, Inc.); Global Helicopter Technology, Inc.; Hagglund Helicopters, LLC (previously Western International Aviation, Inc.); International Helicopters, Inc.; Northwest Rotorcraft, LLC (previously Precision Helicopters, LLC); Robinson Air Crane, Inc.; San Joaquin Helicopters (previously Hawkins & Powers Aviation); S.M. &T. Aircraft (previously US Helicopter Inc., UNC Helicopters, Inc., Southern Aero Corporation, and Wilco Aviation); Smith Helicopters; Southern Helicopter, Inc.; Southwest Florida Aviation International, Inc. (previously Mr. Jamie R. Hill and Southwest Florida Aviation, Inc.); Tamarack Helicopters, Inc. (previously Ranger Helicopter Services, Inc.); US Helicopter, Inc. (previously Williams Helicopter Tech., Southern Aero Corp., Oregon Helicopters and Lenair Cor
This amendment adopts a new airworthiness directive (AD) for the Aeronautical Accessories, Inc. (AAI) Low Skid Landing Gear Forward Crosstube (crosstube) installed on the specified helicopters. This action requires replacing certain AAI serial-numbered crosstubes installed on these model helicopters. This amendment is prompted by the discovery of a defect in the raw material used in manufacturing certain crosstubes. The actions specified in this AD are intended to prevent failure of a crosstube and subsequent collapse of the landing gear.
Airworthiness Directives; Arrow Falcon Exporters, Inc. (Previously Utah State University), et al., Model HH-1K, TH-1F, TH-1L, UH-1A, UH-1B, UH-1E, UH-1F, UH-1H, UH-1L, and UH-1P Helicopters; and Southwest Florida Aviation Model UH-1B (SW204 and SW204HP) and UH-1H (SW205) Helicopters
This document proposes adopting a new airworthiness directive (AD) for the specified type-certificated military surplus helicopters. The AD would require: Creating a component history card or equivalent record for each main rotor grip (grip); determining and recording the total hours time-in-service (TIS) for each grip; visually inspecting the upper and lower tangs of the grip for a crack; inspecting the grip buffer pads for delamination and if delamination is present, inspecting the grip surface for corrosion or other damage; inspecting the grip for a crack using ultrasonic (UT) and fluorescent-penetrant inspection methods; and establishing a retirement life for certain grips. This proposal is prompted by three in-flight failures of grips installed on Bell Helicopter Textron, Inc. (BHTI) Model 212 helicopters, which resulted from cracks originating in the lower main rotor blade bolt lug. The actions specified by the proposed AD are intended to prevent failure of the grip, separation of a main rotor blade, and subsequent loss of control of the helicopter.
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