Federal Aviation Administration 2017 – Federal Register Recent Federal Regulation Documents

We are adopting a new airworthiness directive (AD) for certain Rolls-Royce Deutschland Ltd & Co KG (RRD) model Tay 620-15 turbofan engines. This AD requires reducing the maximum approved life limit. This AD was prompted by RRD recalculating the life limit for certain high-pressure compressor (HPC) stage 12 rotor disks. We are issuing this AD to correct the unsafe condition on these products.

This action modifies Class E airspace extending up to 700 feet above the surface at Wayne Municipal/Stan Morris Field (formally the Wayne Municipal Airport), Wayne, NE, to accommodate new standard instrument approach procedures for instrument flight rules (IFR) operations at the airport. This action is necessary due to the decommissioning of the Wayne non-directional radio beacon (NDB) serving the airport, and cancellation of the NDB approach. This action enhances the safety and management of IFR operations at the airport. The new airport name was not included in the NPRM and is being corrected. The geographic coordinates of the airport also are updated to be in concert with the FAA's aeronautical database.

We are adopting a new airworthiness directive (AD) for certain Rolls-Royce plc (RR) Trent XWB-75, Trent XWB-79, Trent XWB-79B, and Trent XWB-84, turbofan engines. This AD requires replacement of the low-pressure compressor (LPC) case support inboard pins. This AD was prompted by LPC case support inboard pins that may have reduced integrity due to incorrect heat treatment. We are issuing this AD to correct the unsafe condition on these products.

This action modifies the restricted areas at Fort Gordon, GA to further subdivide the vertical limits of the airspace. The designated altitudes for R-3004A and R-3004B are realigned and a new subarea, designated R-3004C, is established above R-3004B. The FAA is taking this action to allow for more efficient use of the airspace during periods when military activities only require restricted airspace below 3,500 feet MSL. The modifications are fully contained within the existing lateral and vertical boundaries of the restricted airspace.

This action proposes to modify Class E airspace extending upward from 700 feet above the surface at Fitch H. Beach Airport, Charlotte, MI. The FAA is proposing this action due to the decommissioning of the Lansing VHF omnidirectional range (VOR) and collocated tactical air navigation (TACAN), which provided navigation guidance for the instrument procedures to this airport. The VOR/TACAN is being decommissioned as part of the VOR Minimum Operational Network (MON) Program. This action would enhance safety and management of instrument flight rules (IFR) operations at this airport. Additionally, the geographic coordinates of the airport would be adjusted to coincide with the FAA's aeronautical database.

We are superseding Airworthiness Directive (AD) 2008-12-04, which applied to certain The Boeing Company Model 737-600, -700, -700C, -800, and -900 series airplanes. AD 2008-12-04 required various repetitive inspections to detect cracks along the chem-milled steps of the fuselage skin, and to detect missing or loose fasteners in the area of a certain preventive modification or repairs; replacement of the time-limited repair with a permanent repair, if applicable; and applicable corrective actions which would end certain repetitive inspections. This AD reduces the post-modification inspection compliance times, limits installation of the preventive modification to airplanes with fewer than 30,000 total flight cycles, and adds repetitive inspections for modified airplanes. This AD was prompted by an evaluation by the design approval holder (DAH) that indicated that the upper skin panel at the chem-milled step above the lap joint is subject to widespread fatigue damage (WFD) if the modification was installed after 30,000 total flight cycles. We are issuing this AD to address the unsafe condition on these products.

We are adopting a new airworthiness directive (AD) for Airbus Helicopters Model EC225LP helicopters. This AD requires modifying the emergency lubrication system (EMLUB). This AD was prompted by two incidents of emergency ditching after there was a warning of a loss of oil pressure and a false EMLUB failure. The actions of this AD are intended to address an unsafe condition on these products.

We propose to adopt a new airworthiness directive (AD) for all Alexander Schleicher GmbH & Co. Segelflugzeugbau Models ASH 25M and ASH 26E gliders. 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 fatigue cracks found on the exhaust silencer. We are issuing this proposed AD to require actions to address the unsafe condition on these products.

This action modifies Class E airspace extending upward from 700 feet above the surface at Soldotna Airport, Soldotna, AK. After review of the airspace, the FAA found redesign necessary due to procedure modifications. This action also removes reference to the Soldotna non-directional radio beacon (NDB) in the legal description and updates the geographic coordinates of the airport. This action enhances the safety and management of IFR operations at the airport and of aircraft within the National Airspace System.

We propose to adopt a new airworthiness directive (AD) for certain Rolls-Royce Corporation (RRC) AE 3007A and AE 3007C model turbofan engines. This proposed AD was prompted by an updated analysis that lowered the life limit of fan wheels installed on the affected engines. This proposed AD would require removal of the affected fan wheel at new, lower life limits. We are proposing this AD to address the unsafe condition on these products.

This action proposes to modify the Class E airspace extending upward from 700 feet above the surface at Batten International Airport, Racine, WI, contained within the Milwaukee, WI, airspace description. The FAA is proposing this action due to the decommissioning of the Horlick VHF omnidirectional range (VOR), which provided navigation guidance for the instrument procedures to this airport. The VOR is being decommissioned as part of the VOR Minimum Operational Network (MON) Program.

We propose to adopt a new airworthiness directive (AD) for Agusta S.p.A. Model AB139 and Model AW139 helicopters. This proposed AD would require inspecting the thickness of the tail gearbox (TGB) central housing (housing). This proposed AD is prompted by reports that the housing thickness does not conform to its type design. The actions of this proposed AD are intended to detect and correct an unsafe condition on these products.

We are superseding Airworthiness Directive (AD) 2016-17-02, which applied to certain Dassault Aviation Model FALCON 900EX and FALCON 2000EX airplanes. AD 2016-17-02 required revising the airplane flight manual (AFM) to include procedures to follow when an airplane is operating in icing conditions. AD 2016-17-02 also provided optional actions after which the AFM revision may be removed from the AFM. Since we issued AD 2016-17-02, we have determined additional actions are necessary to address the identified unsafe condition. This new AD retains the requirement of AD 2016-17-02, and also requires a detailed inspection of the wing anti-ice system ducting (anti-ice pipes) for the presence of a diaphragm, and replacement of ducting or re- identification of the ducting part marking. We are issuing this AD to address the unsafe condition on these products.

We are superseding Airworthiness Directive (AD) 2017-13-12, which applied to all Airbus Model A318 and A319 series airplanes; Model A320-211, -212, -214, -231, -232, and -233 airplanes; and Model A321- 111, -112, -131, -211, -212, -213, -231, and -232 airplanes. AD 2017- 13-12 required modification or replacement of certain side stay assemblies of the main landing gear (MLG). This new AD clarifies the formatting of a figure in the published version of AD 2017-13-12. This new AD was prompted by reports indicating that affected parties misinterpreted the applicability of the affected part numbers due to the formatting of a figure in the published version of AD 2017-13-12, which could result in a negative effect on compliance. We are issuing this AD to address the unsafe condition on these products.

The FAA is issuing this notice to advise the public of the Research, Engineering & Development Advisory Committee meeting.

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, this aspect of the 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.

This action amends the legal description of the Class E airspace designated as an extension, at Lemoore NAS (Reeves Field), Lemoore, CA, eliminating the Notice to Airmen (NOTAM) part-time status. This action does not affect the charted boundaries or operating requirements of the airspace.

This notice announces the availability of and requests comments on the proposed design criteria for the DG Flugzeugbau GmbH model DG-1000M glider. The Administrator finds the proposed design criteria, which make up the certification basis for the DG-1000M glider, acceptable. These final design criteria will be published in the Federal Register.

These special conditions are issued for the Safran Aircraft Engines (SAE), Silvercrest-2 SC-2D engine model. This engine model will have a novel or unusual design feature associated with an additional takeoff rating that maintains takeoff thrust in certain high ambient temperature conditions for a maximum accumulated usage of 20 minutes in any one flight. The applicable airworthiness regulations do not contain adequate or appropriate safety standards for this design feature. These special conditions contain the additional safety standards that the Administrator considers necessary to establish a level of safety equivalent to that established by the existing airworthiness standards.

We are superseding Airworthiness Directive (AD) 2014-25-01, which applied to certain Bombardier, Inc., Model DHC-8-400 series airplanes. AD 2014-25-01 required modifying the nose landing gear (NLG) trailing arm and installing a new pivot pin retention mechanism. This AD instead requires modifying the NLG shock strut assembly. This AD was prompted by reports of discrepancies of a certain bolt at the pivot pin link, resulting in corrosion of the bolt. We are issuing this AD to address the unsafe condition on these products.

We are superseding Airworthiness Directive (AD) 2001-16-01, which applied to certain Airbus Model A330-301, -321, -322, -341, and - 342 airplanes, and certain Model A340 series airplanes; and AD 2014-17- 06, which applied to all Airbus Model A330-200 series airplanes, Model A330-200 Freighter series airplanes, and Model A330-300 series airplanes. AD 2001-16-01 required inspections for cracking of the aft cargo compartment door, and corrective action if necessary. AD 2014-17- 06 required revising the maintenance or inspection program, as applicable, to incorporate structural inspection requirements. This AD requires revising the maintenance or inspection program, as applicable, to incorporate new or revised airworthiness limitation requirements; and removing airplanes from the applicability. This AD was prompted by a determination that more restrictive maintenance instructions and airworthiness limitations are necessary. We are issuing this AD to address the unsafe condition on these products.

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, this aspect of the 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.

We propose to adopt a new airworthiness directive (AD) for all Airbus Model A330-200 series airplanes, Model A330-200 Freighter series airplanes, and Model A330-300 series airplanes. This proposed AD was prompted by an evaluation by the design approval holder (DAH) indicating that certain fuselage structures are subject to widespread fatigue damage (WFD). This proposed AD would require reinforcement modifications of various structural parts of the fuselage, and related investigative and corrective actions if necessary. We are proposing this AD to address the unsafe condition on these products.

We are adopting a new airworthiness directive (AD) for certain Dassault Aviation Model FALCON 900EX airplanes. This AD was prompted by a determination that new or more restrictive maintenance requirements and/or airworthiness limitations are necessary. This AD requires revising the maintenance or inspection program, as applicable, to incorporate new or more restrictive maintenance requirements and/or airworthiness limitations. We are issuing this AD to address the unsafe condition on these products.