Federal Aviation Administration April 23, 2021 – Federal Register Recent Federal Regulation Documents

The FAA is superseding Airworthiness Directive (AD) 2019-17- 02, which applied to certain Airbus Helicopters Deutschland GmbH (Airbus Helicopters) Model EC135P1, EC135P2, EC135P2+, EC135P3, EC135T1, EC135T2, EC135T2+, and EC135T3 helicopters. AD 2019-17-02 required inspecting certain part-numbered actuators for corrosion, removing them as necessary, and reporting certain information. This new AD continues to require inspecting certain part-numbered actuators, removing them as necessary, and reporting; and extends the compliance time for the initial inspection, expands the applicability, and includes new requirements for repetitive replacement of affected actuators; as specified in a European Union Aviation Safety Agency (EASA) AD, which is incorporated by reference. This AD was prompted by a hard landing of a helicopter and the discovery of a ruptured and displaced tie bar inside the piston of the longitudinal single-axis actuator of the main rotor actuator (MRA). 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 The Boeing Company Model 737-100, -200, -200C, -300, -400, and -500 series airplanes. This AD was prompted by crack indications found in the lower aft wing skin bolt holes where the flap tracks attach to the track support fitting. This AD requires repetitive inspections for cracking of the left and right wing, lower aft wing skin aft edge, at certain flap track locations, and applicable on-condition actions. The FAA is issuing this AD to address the unsafe condition on these products.

This action proposes to establish Class E domestic en route airspace extending upward from 1,200 feet above the surface at Mountain Home, ID. This airspace would facilitate vectoring of Instrument Flight Rules (IFR) aircraft and it would properly contain IFR aircraft operating on direct routes under the control of Salt Lake City Air Route Traffic Control Center (ARTCC). The FAA is proposing this action to enhance the safety and management of IFR operations within the National Airspace System (NAS).

This action proposes to modify the Class E airspace, designated as a surface area, and the Class E airspace extending upward from 700 feet above the surface at Williston Basin International Airport, Williston, ND. The proposed airspace modifications support the establishment of new instrument procedures for runways 04 and 22. This action also proposes to update the geographic coordinates in the Class E2 and Class E5 text headers. This action would ensure the safety and management of instrument flight rules (IFR) operations at the airport.