Federal Aviation Administration May 28, 2021 – Federal Register Recent Federal Regulation Documents

The FAA is considering a proposal to change 0.50 acres (future Parcel 17D) of Clear Zone Easement contained in Parcel 17B to Avigation Easement in exchange for converting 2.94 acres of land currently not controlled by the Airport Sponsor (future Parcel 36) to an Avigation Easement for approach protection. Both Parcel 17B and future Parcel 36 are owned by Crossing Rivers Health Center (and are being sold to a commercial developer) and located adjacent to Prairie du Chien Municipal Airport, Prairie du Chien, WI. The proposed release of 0.50 acres of Clear Zone Easement to Avigation Easement is not in the Runway Protection Zone (RPZ). The release of 0.50 acres from Clear Zone Easement to Avigation Easement is required to allow development on the property that is being sold by the Crossing Rivers Health Center. The conversion from Clear Zone Easement to Avigation Easement will not result in any impact to surfaces protected by Part 77 or airport design surfaces. The Clear Zone Easement was originally purchased to enable the Airport to ensure airport compatible land use. The proposed future use of 0.50 acres of the land will be a compatible land use.

The FAA proposes to adopt a new airworthiness directive (AD) for certain Airbus Canada Limited Partnership Model BD-500-1A10 and BD- 500-1A11 airplanes. This proposed AD was prompted by reports of wear damage found between the bonding clamps and the fuel feed tubes inside the left- and right-hand fuel tanks. This proposed AD would require repetitive inspections of the fuel feed tubes for damage, replacement if necessary, and modification of the fuel feed line installation inside the left- and right-hand fuel tanks, which would terminate the repetitive inspections, as specified in a Transport Canada Civil Aviation (TCCA) AD, which is proposed for incorporation by reference. The FAA is proposing this AD to address the unsafe condition on these products.

This action proposes to amend the Class E airspace extending upward from 700 feet above the surface at South Texas Regional Airport at Hondo, Hondo, TX. The FAA is proposing this action as the result of an airspace review caused by the decommissioning of the Hondo non- directional beacon (NDB). The name and geographic coordinates of the airport would also be updated to coincide with the FAA's aeronautical database.

This action proposes to amend the Class D airspace and Class E airspace at Columbus, OH, and revoke the Class E airspace extending upward from 700 feet above the surface at Dan Darby Airport, Columbus, OH. The FAA is proposing this action as the result of an airspace review caused by the decommissioning of the Rickenbacker International Airport runway 5R middle marker and the cancellation of instrument procedures at Dan Darby Airport. The name and geographic coordinates of various airports would also be updated to coincide with the FAA's aeronautical database.

The FAA proposes to adopt a new airworthiness directive (AD) for certain Leonardo S.p.a. Model AW189 helicopters. This proposed AD was prompted by corrosion on the inlet check valve banjo fitting of emergency flotation system (EFS) float assemblies. This proposed AD would require visually inspecting each banjo fitting installed on an affected EFS float assembly, and depending on the results, removing the banjo fitting from service. This proposed AD would also require applying corrosion inhibiting compound to each banjo fitting installed on an affected EFS float assembly and prohibit installing an affected EFS float assembly unless the banjo fitting inspection, banjo fitting replacement, and corrosion inhibiting compound application requirements have been accomplished as specified in a European Aviation Safety Agency (now European Union Aviation Safety Agency) (EASA) AD, which is proposed for incorporation by reference (IBR). The FAA is proposing this AD to address the unsafe condition on these products.