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

We propose to adopt a new airworthiness directive (AD) for all Rolls-Royce plc (RR) Trent 1000-A2, Trent 1000-C2, Trent 1000-D2, Trent 1000-E2, Trent 1000-G2, Trent 1000-H2, Trent 1000-J2, Trent 1000-K2, and Trent 1000-L2 turbofan engine models. This proposed AD was prompted by reports of intermediate-pressure compressor (IPC) rotor seal failures. This proposed AD would require initial and repetitive on-wing borescope inspections (BSI) of affected IPC rotor seals, and removing any cracked parts from service. We are proposing this AD to address the unsafe condition on these products.

We are adopting a new airworthiness directive (AD) for all Airbus SAS Model A318-111 and -112 airplanes, Model A319-111, -112, - 113, -114, and -115 airplanes, Model A320-211, -212, -214, and -216 airplanes, and Model A321-111, -112, -211, -212, and -213 airplanes. This AD was prompted by a report of a production quality deficiency on the inner retainer installed on link assemblies of the aft engine mount, which could result in failure of the retainer. This AD requires modifying and re-identifying the aft engine mount assemblies. We are issuing this AD to address the unsafe condition on these products.

The Federal Aviation Administration (FAA) is announcing the upcoming meetings of the International Aircraft Materials Fire Test Forum (IAMFTF) and the International Aircraft Systems Fire Protection Forum (IASFPF). The IAMFTF and IASFPF were established to provide a forum for interested parties to review and provide feedback on FAA fire safety research driven by current and emerging aircraft systems fire threats and test methods. This notification provides details of where to find the date, location, and agenda for the upcoming meetings. Date and Location: The meeting dates and locations are determined based upon the availability of host organizations to provide meeting space. The FAA Fire Safety Branch website (https://www.fire.tc.faa.gov/ Meetings/meetings.asp) contains all information for upcoming meetings and meeting registration. The meetings are open to the public but due to limited capacity, registration is mandatory.

We are adopting a new airworthiness directive (AD) for certain Airbus Model A319 and A320 series airplanes; and A321-111, -112, -131, -211, -212, -213, -231, and -232 airplanes. This AD was prompted by reports of battery retaining rod failures due to quality defects of the material used during parts manufacturing. This AD requires a detailed inspection of the battery support assemblies to identify the battery retaining rod manufacturer, replacement of the battery retaining rods with serviceable battery retaining rods if necessary, and the addition of the applicable service information label on each battery retaining rod if necessary. We are issuing this AD to address the unsafe condition on these products.

We propose to supersede airworthiness directive (AD) 2015-22- 02 for Bell Helicopter Textron Canada Limited (Bell) Model 429 helicopters. AD 2015-22-02 requires inspecting the tail rotor (TR) pitch link assemblies. This proposed AD would retain the inspections of AD 2015-22-02 and would require replacing certain pitch link bearings. Since we issued AD 2015-22-02, Bell has introduced a new design bearing. The actions of this proposed AD are intended to prevent an unsafe condition on these products.

We are adopting a new airworthiness directive (AD) for certain The Boeing Company Model 747-100, -100B, -100B SUD, -200B, -200C, - 200F, -300, -400, -400D, 747SP, and 747SR, and 747-8 series airplanes. This AD was prompted by reports indicating that additional areas of Boeing Material Specification (BMS) 8-39 flexible urethane foam were found during an inspection required by a related AD. This AD requires inspecting for BMS 8-39 flexible urethane foam insulation in the floor panel assemblies and the power drive unit (PDU) cover assemblies, doing applicable on-condition actions, modifying certain dripshields, and replacing BMS 8-39 foam strips on certain dripshields with BMS 8-371 foam strips. We are issuing this AD to address the unsafe condition on these products.

The Federal Aviation Administration (FAA) announces its findings (Record of Approval) on the noise compatibility program submitted by the Jackson Hole Airport under the provisions of the Aviation Safety and Noise Abatement Act, (hereinafter referred to as ``the Act'') and 14 CFR part 150 (Part 150). On March 23, 2018, the FAA determined that the noise exposure maps submitted by the Jackson Hole Airport under Part 150 were in compliance with applicable requirements. On August 1, 2018 the FAA approved the Jackson Hole Airport Noise Compatibility Program. Five of the 15 measures recommended in the noise compatibility plan was approved and ten measures were disapproved for the purposes of Part 150. Three of the approved recommendations were approved as a continuation of a measure approved in a prior ROA, one was approved as voluntary, and one was approved for the purposes of Part 150. The attachment to this ROA provides a summary of all of the recommendations in the three NCPs (1985, 2004 and 2018) for JAC along with FAA's decision and the status of each.

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 modifies Class E airspace designated as a surface area and makes the airspace full-time and removes the airspace part- time status and language from the airspace legal description, amends Class E airspace extending upward from 700 feet above the surface, and establishes Class E airspace designated as an extension to the Class E surface area at Columbus Municipal Airport, Columbus, NE. This action is at the request of Minneapolis Air Route Traffic Control Center (ARTCC) and the result of an FAA airspace review. Additionally, the geographic coordinates of the airport are updated to coincide with the FAA's aeronautical database. This action is necessary for the safety and management of instrument flight rules (IFR) operations at this airport.

We are adopting a new airworthiness directive (AD) for all The Boeing Company Model 737-100, -200, -200C, -300, -400, and -500 series airplanes. This AD was prompted by report indicating that cracks were found on the fuselage frame webs at stations forward and aft of the overwing emergency exits between stringer-7 (S-7) and S-8. This AD requires repetitive high frequency eddy current (HFEC) inspections for cracking of the fuselage frame webs at certain stations between S-7 and S-8 and applicable on-condition actions. We are issuing this AD to address the unsafe condition on these products.

These special conditions are issued for the Cirrus Design Corporation Model SF50 airplane. This airplane will have a novel or unusual design feature associated with the installation of a rechargeable lithium battery. The applicable airworthiness regulations do not contain adequate or appropriate safety standards for this design feature. These special conditions contain the additional safety standards the Administrator considers necessary to establish a level of safety equivalent to that established by the existing airworthiness standards.

This action proposes to amend Class E airspace extending upward from 700 feet above the surface at Cambridge-Dorchester Regional Airport, Cambridge, MD, to accommodate airspace reconfiguration due to the decommissioning of the Cambridge 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 would update the airport name and geographic coordinates of this airport.

We propose to adopt 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 proposed AD was prompted by reports of depressurization of hydraulic reservoirs caused by air leakage from the pressure relief valve (PRV) of the hydraulic reservoir (HR) due to the extrusion of the O-ring seal from certain HR PRVs. This proposed AD would require identifying the part number of the HR, and replacing and re-identifying affected HR PRVs. We are proposing this AD to address the unsafe condition on these products.

We propose to supersede Airworthiness Directive (AD) 2017-22- 07, which applies to certain Airbus Model 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- 22-07 requires repetitive inspections of the frame forks, and corrective actions if necessary. AD 2017-22-07 also includes optional modifications that constitute terminating action. Since we issued AD 2017-22-07, an evaluation was done by the design approval holder (DAH) indicating that the frame forks and outer skin on the forward and aft cargo compartment doors are subject to widespread fatigue damage (WFD), and a determination was made that a modification of the frame forks must be accomplished. This proposed AD would require modifying certain forward and aft cargo compartment doors, and related investigative and corrective actions. We are proposing 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, 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.

We propose to supersede airworthiness directive (AD) 2015-04- 04 for Bell Helicopter Textron Inc. (Bell) Model 412 and 412EP helicopters. AD 2015-04-04 requires revising the Rotorcraft Flight Manual (RFM) and installing a placard to limit flights to visual flight rules (VFR) and prohibiting night operations because of failing inverters. This proposed AD would require replacing the inverters with a new inverter. The actions in this proposed AD are intended to correct an unsafe condition on these products.

We propose to supersede Airworthiness Directive (AD) 2013-11- 03, which applies to certain Viking Air Limited Model CL-215-1A10 and CL-215-6B11 (CL-215T Variant) airplanes. AD 2013-11-03 requires repetitive detailed inspections for cracking of the left-hand (LH) and right-hand (RH) wing lower skin, and repair if necessary. AD 2013-11-03 was prompted by reports of a fractured wing lower rear spar cap and reinforcing strap. Since we issued AD 2013-11-03, further analysis has indicated the need for repetitive eddy current and borescope inspections. This proposed AD would require repetitive borescope inspections of the LH and RH wing lower skin and repetitive eddy current inspections of the LH and RH wing front and rear lower spar caps. We are proposing this AD to address the unsafe condition on these products.

We propose to adopt a new airworthiness directive (AD) for certain Airbus SAS Model A350-941 airplanes. This proposed AD was prompted by leakage of shrouded pipe T-boxes in the potable water system. This proposed AD would require replacement of the affected potable water T-boxes and clamps with new parts. We are proposing this AD to address the unsafe condition on these products.

This action proposes to modify Class E airspace extending upward from 1,200 feet above the surface in Alaska at Nuiqsut Airport; Oooguruk Island Heliport Nuiqsut; Pioneer Heliport, Nuiqsut; Perryville Airport; Pilot Point Airport; and Point Lay Airport. This proposal would add exclusionary language to the legal descriptions of these airports to exclude Class E airspace extending beyond 12 miles from the shoreline, and would ensure the safety and management of aircraft within the National Airspace System. Also, this action would remove the heliport name from the airspace designation of Oooguruk Island Heliport and Pioneer Heliport.

This action amends the legal description of the Class D airspace at Erie International Airport/Tom Ridge Field, Erie, PA, by correcting a printing error in the latitude coordinate symbols for the airport. This action does not affect the boundaries or operating requirements of the airspace.