Federal Aviation Administration February 2021 – Federal Register Recent Federal Regulation Documents

This action revokes the Class E surface airspace at Tri-County Regional Airport, Lone Rock, WI, and amends the Class E airspace extending upward from 700 feet above the surface at Tri-County Regional Airport and Richland Airport, Richland Center, WI. This action is the result of airspace reviews caused by the decommissioning of the Lone Rock VHF omnidirectional range (VOR) navigation aid as part of the VOR Minimum Operational Network (MON) Program. The names and geographic coordinates of the airport are also being updated to coincide with the FAA's aeronautical database.

This action proposes to amend the Class E airspace extending upward from 700 feet above the surface at Jim Hogg County Airport, Hebbronville, TX. The FAA is proposing this action as the result of an airspace review due to the decommissioning of the Hebbronville non- directional beacon (NDB).

This action amends the Class E airspace extending upward from 700 feet above the surface at multiple Minnesota Towns and revokes the Class E airspace extending upward from 700 feet above the surface at Silver Bay Municipal Airport, Silver Bay, MN. This action is the result of airspace reviews caused by the decommissioning of multiple non- federal non-directional beacons (NDBs) within Minnesota. The names and geographic coordinates of various airports are also being updated to coincide with the FAA's aeronautical database.

The FAA is adopting a new airworthiness directive (AD) for certain Pilatus Aircraft Ltd. (Pilatus) Model PC-24 airplanes. 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 identifies the unsafe condition as electrical harness installations on PC-24 airplanes that are not in compliance with the approved design. This unsafe condition could lead to wire chafing and potential arcing or failure of wires having the incorrect length, possibly resulting in loss of system redundancy, or generation of smoke and smell, or loss of power plant fire protection function. This AD requires modifying the electrical harness installation. The FAA is issuing this AD to address the unsafe condition on these products.

The FAA is adopting a new airworthiness directive (AD) for certain Pilatus Aircraft Ltd. (Pilatus) Model PC-24 airplanes. This AD was prompted by 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 identifies the unsafe condition as improperly manufactured cockpit and cabin evaporator filters installed during production on some PC-24 airplanes. The FAA is issuing this AD to address the unsafe condition on these products.

The FAA is adopting a new airworthiness directive (AD) for Pilatus Aircraft Ltd. (Pilatus) Model PC-12/47E airplanes. This AD was prompted by 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 inboard flap fairings aft (IFFAs) having an incorrect shape, which may result in chafing between the IFFA and the associated front inboard tension rod. This AD requires an inspection of the IFFAs for the correct shape and chafing between the IFFA and the associated front inboard tension rod, with corrective action as necessary. This condition could lead to failure of the inboard flap drive arm with consequent asymmetric flap extension, resulting in reduced control of the airplane. The FAA is issuing this AD to address the unsafe condition on these products.

This action proposes to amend Class D airspace, Class E surface airspace, and Class E airspace extending upward from 700 feet above the surface for Worcester Regional Airport, Worcester, MA, as an airspace evaluation of the area determined additional airspace is necessary. Also, this action proposes to establish Class E airspace extending upward from 700 feet above the surface for UMass Memorial Medical Center-University Campus Heliport, to accommodate new area navigation (RNAV) global positioning system (GPS) standard instrument approach procedures (SIAPs) serving this heliport. Controlled airspace is necessary for the safety and management of instrument flight rules (IFR) operations in the area.

This action proposes to establish Class E airspace extending upward from 700 feet above the surface of the earth at Crooked Creek Airport, Crooked Creek, AK. This action would accommodate new area navigation (RNAV) procedures and ensure the safety and management of instrument flight rule (IFR) operations within the National Airspace System.

The FAA proposes to adopt a new airworthiness directive (AD) for all Rolls-Royce Deutschland Ltd & Co KG (RRD) Trent XWB-75, Trent XWB-79, Trent XWB-79B, Trent XWB-84, and Trent XWB-97 model turbofan engines. This proposed AD was prompted by the manufacturer revising the time limits manual (TLM) to incorporate repairs to the low-pressure compressor (LPC) blades and introduce a new fan blade inspection. This proposed AD would require revisions to the airworthiness limitations section (ALS) of the Rolls-Royce (RR) Trent XWB TLM and the operator's existing approved aircraft maintenance program (AMP). The FAA is proposing this AD to address the unsafe condition on these products.

This action removes the Class E airspace designated as an extension to the Class D airspace and amends the Class E airspace extending upward from 700 and 1200 feet AGL at Bucholz AAF, Kwajalein Atoll, Republic of the Marshall Islands. The Class E airspace extending upward from 700 feet is amended to ensure it does not extend beyond 12 nautical miles from the outer shoreline of the Atoll into international airspace.

This action proposes to revoke the Class E airspace extending upward from 700 feet above the surface at Mineola Wisener Field, Mineola, TX. The FAA is proposing this action as the result of the cancellation of the instrument procedures at this airport.

This action proposes to amend the Class E airspace extending upward from 700 feet above the surface at Durant Regional Airport-Eaker Field, Durant, OK. The FAA is proposing this action as the result of an airspace review caused by the decommissioning of the Texoma VHF omnidirectional range (VOR) navigation aids as part of the VOR Minimum Operational Network (MON) Program. The name and geographical coordinates of the airport would also be updated to coincide with the FAA's aeronautical database.

The FAA is adopting a new airworthiness directive (AD) for all The Boeing Company Model 737 series airplanes, excluding Model 737-100, -200, -200C, -300, -400, and -500 series airplanes. This AD was prompted by reports of cracked or completely severed lugs in the upper aft corner stop fitting assembly of the forward entry door. This AD requires an inspection, a measurement, or a records check of that assembly to determine the part number, and replacement if a certain part is found. The FAA is issuing this AD to address the unsafe condition on these products.

The FAA is adopting a new airworthiness directive (AD) for certain Airbus Helicopters Deutschland GmbH Model EC135P1, EC135P2, EC135P2+, EC135P3, EC135T1, EC135T2, EC135T2+, and EC135T3 helicopters. This AD requires removing certain Titanium (Ti) bolts from service and prohibits installing these Ti-bolts in a critical area. This AD was prompted by a report of a broken Ti-bolt. The actions of this AD are intended to address an unsafe condition on these products.

The FAA is adopting a new airworthiness directive (AD) for certain The Boeing Company Model 737-700 series airplanes. This AD requires repetitive testing to verify correct operation of the smoke clearance mode of the equipment cooling system and low pressure environmental control system, and corrective actions if necessary. This AD also requires installing new relays and changing the wiring to the environmental control system, among other actions. This AD was prompted by a determination that a repetitive test is needed to assess the components on airplanes equipped with a certain air distribution system configuration. The FAA is issuing this AD to address the unsafe condition on these products.

The FAA is adopting a new airworthiness directive (AD) for all Pilatus Aircraft Ltd. Model PC-7 airplanes. 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. This AD requires revising the Airworthiness Limitations section (ALS) of the existing aircraft maintenance manual (AMM) to introduce new mandatory repetitive inspections for the flap pivot arm assemblies and for certain wing angle brackets, and to implement a change to the Oxygen cylinder and pressure reducer task item. The FAA is issuing this AD to address the unsafe condition on these products.

The FAA is withdrawing a notice of proposed rulemaking (NPRM) and supplemental notice of proposed rulemaking (SNPRM) that proposed to supersede airworthiness directive (AD) 72-14-08 R1 for Cessna Aircraft Company (now Textron Aviation Inc.) Models 310, 320, 401, 402, 411, and 421 airplanes. AD 72-14-08 R1 requires repetitively inspecting the fuel and oil flexible hose lines for leakage or evidence of any damaged or deteriorated hose assembly on the above-referenced airplanes and replacing any discrepant part. Since issuance of the SNPRM, the FAA has not received any reports of fuel and oil flexible hose lines that leak or are damaged and has determined that the repetitive inspections required by AD 72-14-08 R1 address the unsafe condition. Accordingly, the NPRM and SNPRM are withdrawn.

The FAA is withdrawing a notice of proposed rulemaking (NPRM) that proposed to adopt a new airworthiness directive (AD) that would have applied to all Sikorsky Aircraft Corporation (Sikorsky) S-76 model helicopters with a certain life raft deployment system (LRDS) installed per Supplemental Type Certificate (STC) SR09211RC. The NPRM was prompted by an incident that occurred where the handle bent prior to the life raft deploying, and this prohibited the crew from successfully deploying and using the life raft. It was determined that the handle in this incident was not manufactured to the approved Type Design. The NPRM would have required removing and replacing the pilot or co-pilot life raft deployment handle (handle) located on the left side of the ``broom closet'' of the helicopter. Since issuance of the NPRM, the FAA determined that, based on a review of the design approval holder's records, all of the handles have been replaced. Accordingly, the NPRM is withdrawn.

The FAA proposes to supersede Airworthiness Directive (AD) 2020-09-14, which applies to certain Airbus SAS Model A350-941 and - 1041 airplanes. AD 2020-09-14 requires revising the existing airplane flight manual (AFM) to define a liquid-prohibited zone on the flight deck and provide procedures following liquid spillage on the center pedestal. AD 2020-09-14 also requires installing a removable integrated control panel (ICP) cover on the flight deck and further revising the AFM to include instructions for ICP cover use. Since the FAA issued AD 2020-09-14, a new, water-resistant ICP has been developed. This proposed AD would require installing a new, water-resistant ICP, which would allow removing the ICP protective cover and the AFM revisions, as specified in a European Union Aviation Safety Agency (EASA) AD, which will be incorporated by reference. The FAA is proposing this AD to address the unsafe condition on these products.

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 Federal Register Notice with a 60-day comment period soliciting comments on the following collection of information was published on November 4, 2020. Organizations that desire to become or remain certified as air carriers or commercial operators are mandated to report information to the FAA. The information collected reflects requirements necessary under parts 135, 121, and 125 to comply with Federal Aviation Regulation part 119Certification: Air Carriers and Commercial Operators. The FAA will use the information it collects and reviews to ensure compliance and adherence to regulations and, if necessary, to take enforcement action on violators of the regulations.

This notice announces a meeting of the Commercial Space Transportation Advisory Committee for March 23, 2021.

The Federal Aviation Administration received written notice from the Alaska Department of Transportation (AKDOT) advising that infrastructure associated with Haines, Alaska Seaplane Base (3Z9) is permanently closed.

The FAA is superseding Airworthiness Directive (AD) 2020-19- 02, which applied to certain Airbus Helicopters (previously Eurocopter France) Model SA330J helicopters. AD 2020-19-02 required repetitively inspecting affected tail rotor (T/R) blades and depending on the inspection results, repairing or replacing the T/R blade. AD 2020-19-02 also prohibited installing an affected T/R blade unless it passed the inspections. This AD retains the requirements of AD 2020-19-02 and also clarifies the applicability, clarifies the affected T/R blades in the required actions, reduces a compliance time, and corrects the prohibition requirement. This AD was prompted by the determination that these corrections are necessary. The FAA is issuing this AD to address the unsafe condition on these products.

Notice is being given that the FAA is considering a request from the Gulf Shores Airport Authority to release and exchange 5 acres of airport property, previously released for non- aeronautical use, for 5.75 acres of adjacent property to be used for non-aeronautical business development.

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 FAA Regional Administrators' Offices and the FAA Noise Ombudsman will use the information voluntarily reported, on the occasion of a complaint, by the public in the FAA Noise Portal to prepare responses to their noise complaints or inquiries. The required FAA Noise Portal fields represent the minimum amount of information the FAA needs to address the public's noise complaint or question and includes: name, email, address or cross street and a description of the noise complaint or inquiry. It is important to know the person's name and email address to respond and track the complaint. The FAA will not respond to the same complaint from the same person more than once. The address or cross street is needed for the FAA to determine potential sources of the aircraft noise issues as most people complain about aircraft in the vicinity of their residence. The description is used to provide additional details for the FAA to better address the complaint or question.