Federal Aviation Administration October 2018 – Federal Register Recent Federal Regulation Documents

Results 101 - 135 of 135
Airworthiness Directives; Pratt & Whitney Division (PW) Turbofan Engines
Document Number: 2018-21694
Type: Proposed Rule
Date: 2018-10-10
Agency: Federal Aviation Administration, Department of Transportation
We propose to adopt a new airworthiness directive (AD) for certain Pratt & Whitney Division (PW) PW4074, PW4074D, PW4077, PW4077D, PW4084D, PW4090, and PW4090-3 turbofan engines. This proposed AD was prompted by an in-flight failure of a 1st stage low-pressure compressor (LPC) blade. This proposed AD would require initial and repetitive thermal acoustic imaging (TAI) inspections for cracks in certain 1st stage LPC blades and removal of those blades that fail inspection. We are proposing this AD to address the unsafe condition on these products.
Airworthiness Directives; Pratt & Whitney Turbofan Engines
Document Number: 2018-21693
Type: Proposed Rule
Date: 2018-10-10
Agency: Federal Aviation Administration, Department of Transportation
We propose to supersede Airworthiness Directive (AD) 2017-11- 06, which applies to all Pratt & Whitney (PW) PW2037, PW2037D, PW2037M, PW2040, PW2040D, PW2043, PW2143, PW2643, and F117-PW-100 turbofan engine models. AD 2017-11-06 requires initial and repetitive on-wing eddy current inspections (ECIs) of affected engines with certain diffuser and high-pressure turbine (HPT) cases installed. AD 2017-11-06 also requires a fluorescent-penetrant inspection (FPI) of the diffuser case rear flange and the HPT case front flange. Since we issued AD 2017-11-06, we learned of designated engineering representative (DER)- approved diffuser case M-flange replacement repairs. This proposed AD would require an on-wing ECI of all diffuser case M-flange replacement repairs. We are proposing this AD to address the unsafe condition on these products.
Airworthiness Directives; CFM International S.A. Turbofan Engines
Document Number: 2018-21508
Type: Rule
Date: 2018-10-10
Agency: Federal Aviation Administration, Department of Transportation
We are adopting a new airworthiness directive (AD) for all CFM International S.A. (CFM) LEAP-1A23, -1A24, -1A24E1, -1A26, -1A26E1, - 1A26CJ, -1A29, -1A29CJ, -1A30, -1A32, -1A33, -1A33B2, and -1A35A turbofan engines with certain full authority digital engine control (FADEC) and prognostic health monitoring (PHM) software installed. This AD requires removing certain FADEC and PHM software and installing versions eligible for installation. This AD was prompted by aborted takeoffs after engines did not advance to the desired takeoff fan speed due to icing in the pressure sensor line. We are issuing this AD to address the unsafe condition on these products.
Airworthiness Directives; Hoffmann GmbH & Co. KG Propellers
Document Number: 2018-21507
Type: Rule
Date: 2018-10-10
Agency: Federal Aviation Administration, Department of Transportation
We are adopting a new airworthiness directive (AD) for certain Hoffmann GmbH & Co. KG model HO-V 62 propellers. This AD was prompted by the failure of the propeller blade lag screws. This AD requires removal of the affected propeller blades and installation of modified propeller blades marked with change letter ``A'' or ``B.'' We are issuing this AD to address the unsafe condition on these products.
Agency Information Collection Activities: Requests for Comments; Clearance of Renewed Approval of Information Collection: 2120-0043
Document Number: 2018-21886
Type: Notice
Date: 2018-10-09
Agency: Federal Aviation Administration, Department of Transportation
In accordance with the Paperwork Reduction Act of 1995, FAA invites public comments about our intention to request the Office of Management and Budget (OMB) approval to renew an information collection. The collection involves return to the Civil Aviation Aircraft Registry of information relating to the release of a lien that has been recorded with the Registry. Regulations provide for establishing and maintaining a system for the recording of security conveyances affecting title to, or interest in U.S. civil aircraft, as well as certain specifically identified engines, propellers, or spare parts locations, and for recording of releases relating to those conveyances. Federal Aviation Regulations establish procedures for implementation. Regulations describe what information must be contained in a security conveyance in order for it to be recorded with FAA. The convention on the International Recognition signatory, prevents, by treaty, the export of an aircraft and cancellation of its nationality marks if there is an outstanding lien recorded. The Civil Aviation Registry must have consent or release of lien from the lienholder prior to confirmation/cancellation for export.
Agency Information Collection Activities: Requests for Comments; Clearance of Reinstated Approval of Information Collection: Flight Simulation Device Initial and Continuing Qualification and Use
Document Number: 2018-21885
Type: Notice
Date: 2018-10-09
Agency: Federal Aviation Administration, Department of Transportation
In accordance with the Paperwork Reduction Act of 1995, FAA invites public comments about our intention to request the Office of Management and Budget (OMB) approval to renew an information collection. This request for clearance reflects requirements necessary under regulations to ensure safety-of-flight by ensuring that complete and adequate training, testing, checking, and experience is obtained and maintained by those who operate under regulation and use flight simulation in lieu of aircraft for these functions. The Federal Register Notice with a 60-day comment period soliciting comments on the following collection of information was published on November 30, 2017.
Proposed Primary Category Design Standards; Vertical Aviation Technologies (VAT) Model S-52L Rotorcraft
Document Number: 2018-21661
Type: Proposed Rule
Date: 2018-10-09
Agency: Federal Aviation Administration, Department of Transportation
This action shortens the comment period for the notice of availability; request for comments that was published on September 26, 2018. In that document, the FAA announced the existence of and requested comments on the proposed airworthiness design standards for acceptance of the Vertical Aviation Technologies (VAT) Model S-52L rotorcraft under the regulations for primary category aircraft.
Airworthiness Directives; Dassault Aviation Model FALCON 2000 Airplanes
Document Number: 2018-21609
Type: Proposed Rule
Date: 2018-10-09
Agency: Federal Aviation Administration, Department of Transportation
We propose to adopt a new airworthiness directive (AD) for certain Dassault Aviation Model FALCON 2000 airplanes. This proposed AD was prompted by a report of chafing of a wire bundle located at the bottom of the right hand electrical cabinet. This proposed AD would require a one-time general visual inspection of the wiring bundle for damage, measurement of the clearance between the metallic plate and the wiring bundle, and corrective actions if necessary. We are proposing this AD to address the unsafe condition on these products.
Airworthiness Directives; Airbus Defense and Space S.A. (Formerly Known as Construcciones Aeronauticas, S.A.) Airplanes
Document Number: 2018-21608
Type: Proposed Rule
Date: 2018-10-09
Agency: Federal Aviation Administration, Department of Transportation
We propose to adopt a new airworthiness directive (AD) for certain Airbus Defense and Space S.A. Model CN-235, CN-235-200 and CN- 235-300 airplanes. This proposed AD was prompted by a determination that new or more restrictive airworthiness limitations are necessary. This proposed AD would require revising the maintenance or inspection program, as applicable, to incorporate new or more restrictive airworthiness limitations. We are proposing this AD to address the unsafe condition on these products.
Airworthiness Directives; Dassault Aviation Airplanes
Document Number: 2018-21466
Type: Rule
Date: 2018-10-09
Agency: Federal Aviation Administration, Department of Transportation
We are adopting a new airworthiness directive (AD) for certain Dassault Aviation Model FALCON 900EX airplanes. This AD was prompted by reports of rejected take-offs due to untimely inboard flap retraction. This AD requires modification of the slat/flap control wiring and replacement of the slat/flap control box with an improved box. We are issuing this AD to address the unsafe condition on these products.
Airworthiness Directives; Airbus SAS Airplanes
Document Number: 2018-21464
Type: Rule
Date: 2018-10-09
Agency: Federal Aviation Administration, Department of Transportation
We are adopting a new airworthiness directive (AD) for all Airbus SAS Model A300 series airplanes; Model A300 B4-600, B4-600R, and F4-600R series airplanes, and Model A300 C4-605R Variant F airplanes (collectively called Model A300-600 series airplanes); and Model A310 series airplanes. This AD was prompted by a report of yellow hydraulic system failure, including both braking accumulators, due to failure of the parking brake operated valve (PBOV). This AD requires replacement of a certain PBOV with a different PBOV. We are issuing this AD to address the unsafe condition on these products.
Airworthiness Directives; Dassault Aviation Airplanes
Document Number: 2018-21462
Type: Rule
Date: 2018-10-09
Agency: Federal Aviation Administration, Department of Transportation
We are adopting a new airworthiness directive (AD) for certain Dassault Aviation Model FALCON 2000EX airplanes. This AD was prompted by the manufacturer revising the airplane maintenance manual (AMM) maintenance requirements and airworthiness limitations. This AD requires revising the maintenance or inspection program, as applicable, to incorporate new maintenance requirements and airworthiness limitations. We are issuing this AD to address the unsafe condition on these products.
Amendment of Class D Airspace; Lewiston, ID
Document Number: 2018-21660
Type: Rule
Date: 2018-10-05
Agency: Federal Aviation Administration, Department of Transportation
This action amends Class D airspace at Lewiston-Nez Perce County Airport, Lewiston, ID, by increasing the upward extension of Class D airspace from 2,700 feet MSL to 3,900 feet MSL. The upward extension was incorrectly lowered in the final rule published March 15, 2018.
Amendment of Class E Airspace, Belfast, ME
Document Number: 2018-21657
Type: Rule
Date: 2018-10-05
Agency: Federal Aviation Administration, Department of Transportation
This action amends Class E airspace extending upward from 700 feet above the surface at Belfast Municipal Airport, Belfast, ME, to accommodate airspace reconfiguration due to the decommissioning of the Belfast non-directional radio beacon and cancellation of the NDB approach. Controlled airspace is necessary for the safety and management of instrument flight rules (IFR) operations at this airport. This action also updates the geographic coordinates of this airport.
Petition for Exemption; Summary of Petition Received; The Boeing Company
Document Number: 2018-21656
Type: Notice
Date: 2018-10-05
Agency: Federal Aviation Administration, Department of Transportation
This notice contains a summary of a petition seeking relief from specified requirements of Federal Aviation Regulations. The purpose of this notice is to improve the public's awareness of, and participation in, the FAA's exemption process. 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.
Proposed Amendment of Class E Airspace; Bethel, ME
Document Number: 2018-21456
Type: Proposed Rule
Date: 2018-10-04
Agency: Federal Aviation Administration, Department of Transportation
This action proposes to amend Class E airspace extending upward from 700 feet above the surface at Bethel Regional Airport, Bethel, ME, to accommodate new area navigation (RNAV) global positioning system (GPS) standard instrument approach procedures serving this airport. Controlled airspace is necessary for the safety and management of instrument flight rules (IFR) operations at this airport.
Airworthiness Directives; Airbus SAS Airplanes
Document Number: 2018-21455
Type: Proposed Rule
Date: 2018-10-04
Agency: Federal Aviation Administration, Department of Transportation
We propose to supersede Airworthiness Directive (AD) 2015-12- 08, which applies to all Airbus SAS Model A318 and A319 series airplanes and all Model A320-211, A320-212, A320-214, A320-231, A320- 232, A320-233, A321-111, A321-112, A321-131, A321-211, A321-212, A321- 213, A321-231, and A321-232 airplanes. AD 2015-12-08 requires an inspection to determine the batch number or installation date of the oxygen pipe assembly that is installed at the end of the right-hand crew distribution line, and replacement of the pipe if necessary. Since we issued AD 2015-12-08, further investigation determined that affected oxygen pipes may have been installed on more airplanes than initially identified. This proposed AD would revise the applicability to include additional airplane models and additional pipes to be replaced if necessary. We are proposing this AD to address the unsafe condition on these products.
Petition for Exemption; Summary of Petition Received; Rolls-Royce plc
Document Number: 2018-21469
Type: Notice
Date: 2018-10-03
Agency: Federal Aviation Administration, Department of Transportation
This notice contains a summary of a petition seeking relief from specified requirements of Title 14, Code of Federal Regulations. The purpose of this notice is to improve the public's awareness of, and participation in, the FAA's exemption process. 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.
Consensus Standards, Light-Sport Aircraft
Document Number: 2018-21458
Type: Notice
Date: 2018-10-03
Agency: Federal Aviation Administration, Department of Transportation
This notice announces the availability of two new and two revised consensus standards relating to the provisions of the Sport Pilot and Light-Sport Aircraft rule issued July 16, 2004, and effective September 1, 2004. ASTM International Committee F37 on Light-Sport Aircraft developed the new and revised standards with Federal Aviation Administration participation. By this notice, the Federal Aviation Administration finds the new and revised standards acceptable for certification of the specified aircraft under the provisions of the Sport Pilot and Light-Sport Aircraft rule.
Airworthiness Directives; General Electric Company CF34-8E Engines
Document Number: 2018-21378
Type: Rule
Date: 2018-10-03
Agency: Federal Aviation Administration, Department of Transportation
We are adopting a new airworthiness directive (AD) for certain General Electric Company (GE) CF34-8E turbofan engines. This AD was prompted by a report from GE regarding a quality escape of nonconforming thrust reverser fire seals. This AD requires a one-time inspection of the gap between the core cowl seal and the pylon seal of the thrust reverser for correct gap width, and replacement of the seals, if needed. We are issuing this AD to address the unsafe condition on these products.
Airworthiness Directives; The Boeing Company Airplanes
Document Number: 2018-21346
Type: Rule
Date: 2018-10-03
Agency: Federal Aviation Administration, Department of Transportation
We are superseding Airworthiness Directive (AD) 2013-01-02, which applied to certain The Boeing Company Model 747-100, 747-100B, 747-100B SUD, 747-200B, 747-200C, 747-200F, 747-300, 747-400, 747-400D, 747-400F, 747SR, and 747SP series airplanes; and Model 757-200, 757- 200PF, and 757-300 series airplanes. AD 2013-01-02 required replacing the control switches of certain cargo doors. This AD requires replacement of certain cargo door control switches with a new, improved switch; installation of an arm switch in certain cargo doors; operational and functional tests; and applicable on-condition actions. This AD also adds airplanes to the applicability. This AD was prompted by reports of uncommanded cargo door operation. We are issuing this AD to address the unsafe condition on these products.
Airworthiness Directives; BAE Systems (Operations) Limited Airplanes
Document Number: 2018-21344
Type: Rule
Date: 2018-10-03
Agency: Federal Aviation Administration, Department of Transportation
We are adopting a new airworthiness directive (AD) for all BAE Systems (Operations) Limited Model 4101 airplanes. This AD was prompted by a determination that inspection requirements for a number of maintenance tasks are incorrect. This AD requires a one-time detailed inspection of a certain fuselage frame and repair, if necessary, and a revision of the maintenance or inspection program, as applicable, to incorporate new or revised maintenance instructions and airworthiness limitations. We are issuing this AD to address the unsafe condition on these products.
Airworthiness Directives; Dassault Aviation Airplanes
Document Number: 2018-21343
Type: Rule
Date: 2018-10-03
Agency: Federal Aviation Administration, Department of Transportation
We are adopting a new airworthiness directive (AD) for all Dassault Aviation Model MYSTERE-FALCON 50 airplanes. This AD was prompted by a determination that more restrictive maintenance requirements and airworthiness limitations are necessary. This AD requires revising the maintenance or inspection program, as applicable, to incorporate new and more restrictive maintenance requirements and airworthiness limitations. We are issuing this AD to address the unsafe condition on these products.
Airworthiness Directives; Airbus Helicopters Deutschland GmbH Helicopters
Document Number: 2018-21342
Type: Rule
Date: 2018-10-03
Agency: Federal Aviation Administration, Department of Transportation
We are adopting a new airworthiness directive (AD) for Airbus Helicopters Deutschland GmbH (Airbus Helicopters) Model MBB-BK 117 C-2 and MBB-BK 117 D-2 helicopters. This AD requires altering and re- identifying the overhead panel shock mount assembly (shock mount). This AD was prompted by the manufacturer's stress recalculations. The actions of this AD are intended to correct an unsafe condition on these products.
Airworthiness Directives; Airbus SAS Airplanes
Document Number: 2018-20348
Type: Rule
Date: 2018-10-03
Agency: Federal Aviation Administration, Department of Transportation
We are adopting a new airworthiness directive (AD) for certain Airbus SAS Model A300 B4-603, B4-620, and B4-622 airplanes; Model A300 B4-600R series airplanes; Model A300 C4-605R Variant F airplanes; and Model A300 F4-605R airplanes. This AD was prompted by reports of cracking on a certain frame (FR) angle fitting. This AD requires, depending on airplane configuration, a modification of certain angle fitting attachment holes; repetitive inspections for cracking of certain holes of the internal lower angle fitting web, certain holes of the internal lower angle fitting horizontal splicing, the aft bottom panel, and a certain junction area; and related investigative and corrective actions if necessary. We are issuing this AD to address the unsafe condition on these products.
Airworthiness Directives; Airbus SAS Airplanes
Document Number: 2018-21347
Type: Rule
Date: 2018-10-02
Agency: Federal Aviation Administration, Department of Transportation
We are superseding Airworthiness Directive (AD) 2018-02-18, which applied to certain Airbus SAS Model A318, A319, and A320 series airplanes and Model A321-111, -112, -131, -211, -212, -213, -231, and - 232 airplanes. AD 2018-02-18 required revising the airplane flight manual (AFM) to provide guidance to the flightcrew for certain emergency procedures. This new AD requires revising the AFM, and for certain airplanes, removing a certain AFM revision. This AD also adds airplanes to the applicability. This AD was prompted by a determination that, when two angle of attack (AoA) sensors are adversely affected by icing conditions at the same time, data displayed on the back up speed scale (BUSS) could be erroneous. This AD was also prompted by a determination that the AFM needs to be revised for certain additional airplanes, and that the AFM may have been erroneously revised on certain airplanes not equipped with a BUSS function. We are issuing this AD to address the unsafe condition on these products.
Proposed Establishment of Class E Airspace; Leitchfield, KY
Document Number: 2018-21318
Type: Proposed Rule
Date: 2018-10-02
Agency: Federal Aviation Administration, Department of Transportation
This action proposes to establish Class E airspace extending upward from 700 feet above the surface at Leitchfield-Grayson County Airport, Leitchfield, KY, to accommodate new area navigation (RNAV) global positioning system (GPS) standard instrument approach procedures serving the airport. Controlled airspace is necessary for the safety and management of instrument flight rules (IFR) operations at this airport.
Amendment of Class E Airspace, Knoxville, TN; and Establishment of Class E Airspace, Madisonville, TN
Document Number: 2018-21316
Type: Rule
Date: 2018-10-02
Agency: Federal Aviation Administration, Department of Transportation
This action amends Class E surface airspace at Knoxville Downtown Island Airport, Knoxville, TN, by adding to the airspace description the exclusion of a 1-mile radius around University of Tennessee Medical Center Heliport, to allow helicopters departing from the heliport to no longer require a clearance. Also, the Benfi non- directional radio beacon (NDB) has been decommissioned, requiring redesign of Class E airspace extending upward from 700 feet above the surface at McGhee-Tyson Airport, and Monroe County Airport, Madisonville, TN, is moved to stand-alone airspace with its own designation. This action is necessary to further the safety and management of Instrument Flight Rules (IFR) operations at these airports. This action also updates the geographic coordinates of Knoxville Downtown Island Airport, McGhee Tyson Airport, and Gatlinburg-Pigeon Forge Airport in the associated Class E airspace areas to coincide with the FAA's aeronautical database.
Amendment of Class D and Class E Airspace; Beaver Falls, PA; and Zelienople, PA
Document Number: 2018-21305
Type: Rule
Date: 2018-10-02
Agency: Federal Aviation Administration, Department of Transportation
This action amends Class E airspace extending upward from 700 feet or more above the surface at Beaver County Airport Beaver Falls, PA, as the University of Pittsburg Medical Center Beaver Valley Heliport has closed, and controlled airspace is no longer required. The geographic coordinates of the Ellwood City VOR/DME, (incorrectly identified as VORTAC), is amended in the associated Class E airspace. Also, the term Airport Facility Directory is replaced with Chart Supplement. This action also amends Class E airspace extending upward from 700 feet or more above the surface at Zelienople Municipal Airport (formerly Zelienople Airport), PA, by recognizing the airport's name change and updating the airport's geographic coordinates. Controlled airspace is necessary for the safety and management of instrument flight rules (IFR) operations at these airports.
Airworthiness Directives; CFM International S.A. Turbofan Engines
Document Number: 2018-21245
Type: Rule
Date: 2018-10-01
Agency: Federal Aviation Administration, Department of Transportation
The FAA is superseding Airworthiness Directive (AD) 2018-10-11 for all CFM International S.A. (CFM) Model CFM56-7B engines. AD 2018- 10-11 required initial and repetitive inspections of certain fan blades and, if they fail the inspection, their replacement with parts eligible for installation. This superseding AD requires the same initial and repetitive inspections but revises the compliance time for the repetitive inspections. This AD was prompted by further analysis by the manufacturer that indicated a need to reduce the repetitive fan blade inspection interval based on ongoing root cause investigation of an April 2018 engine failure. The agency is issuing this AD to address the unsafe condition on these products.
Airworthiness Directives; Airbus SAS Airplanes
Document Number: 2018-21100
Type: Rule
Date: 2018-10-01
Agency: Federal Aviation Administration, Department of Transportation
We are superseding Airworthiness Directive (AD) 2016-25-03, which applied to certain Airbus Model A300 F4-600R series airplanes. AD 2016-25-03 required repetitive high frequency eddy current (HFEC) inspections of the aft lower deck cargo door (LDCD) frame forks; a one- time check of the LDCD clearances; and a one-time detailed visual inspection of hooks, eccentric bushes, and x-stops; and corrective actions if necessary. This AD requires repetitive HFEC inspections of the aft LDCD frame forks; a one-time check of the LDCD clearances; and a one-time detailed visual inspection of hooks, eccentric bushes, and x-stops; and corrective actions if necessary. This AD was prompted by a report of two adjacent frame forks that were found cracked on the aft LDCD of two airplanes during scheduled maintenance, and the introduction of frame fork reinforcement or repair procedures that, when done, allow an extension of repetitive inspection intervals. We are issuing this AD to address the unsafe condition on these products.
Airworthiness Directives; Dassault Aviation Airplanes
Document Number: 2018-21099
Type: Rule
Date: 2018-10-01
Agency: Federal Aviation Administration, Department of Transportation
We are adopting a new airworthiness directive (AD) for all Dassault Aviation Model MYSTERE-FALCON 200 airplanes. This AD was prompted by a determination that more restrictive maintenance requirements and airworthiness limitations are necessary. This AD requires revising the maintenance or inspection program, as applicable, to incorporate new or more restrictive maintenance requirements and airworthiness limitations. We are issuing this AD to address the unsafe condition on these products.
Amendment of Class E Airspace; Burlington, WI
Document Number: 2018-21097
Type: Rule
Date: 2018-10-01
Agency: Federal Aviation Administration, Department of Transportation
This action modifies Class E airspace extending upward from 700 feet above the surface at Burlington Municipal Airport, Burlington, WI. This action is necessary due to the decommissioning of the Burbun VHF omnidirectional range (VOR), cancellation of the VOR approach procedure, and implementation of new area navigation (RNAV) procedures for the safety and management of instrument flight rules (IFR) operations at the airport. This action adjusts the geographic coordinates of the Burlington Municipal Airport to coincide with the FAA's aeronautical database.
Airworthiness Directives; Bombardier, Inc., Airplanes
Document Number: 2018-20950
Type: Proposed Rule
Date: 2018-10-01
Agency: Federal Aviation Administration, Department of Transportation
We propose to supersede Airworthiness Directive (AD) 2008-24- 14, which applies to all Bombardier, Inc., Model CL-600-2B19 (Regional Jet Series 100 & 440) airplanes. AD 2008-24-14 requires revising the instructions for continued airworthiness to incorporate certain airworthiness limitations for the main landing gear (MLG) trunnion fitting assembly. Since we issued AD 2008-24-14, new airworthiness limitation (AWL) tasks have been introduced with revised inspection, modification, and safe-life requirements. This proposed AD would require revising the maintenance or inspection program, as applicable, to incorporate certain AWLs. It would also require reworking the trunnion fitting in order to meet new structural safe-life limits. We are proposing this AD to address the unsafe condition on these products.
Airworthiness Directives; Airbus SAS Airplanes
Document Number: 2018-20932
Type: Rule
Date: 2018-10-01
Agency: Federal Aviation Administration, Department of Transportation
We are adopting a new airworthiness directive (AD) for all Airbus SAS Model A330-200 Freighter, -200, and -300 series airplanes; and Airbus SAS Model A340-200, -300, -500, and -600 series airplanes. This AD was prompted by a report of deficient fatigue performance of high strength steel used in forgings. Components made from the affected high strength steel are installed on the main landing gear (MLG), nose landing gear (NLG), and center landing gear (CLG). This AD requires identifying the part number and serial number of certain components installed on the MLG, NLG, and CLG; replacing affected parts; identifying the airplane's weight variant; and determining the applicable life limit for certain components installed on the MLG, NLG, and CLG. We are issuing this AD to address the unsafe condition on these products.