Federal Aviation Administration April 10, 2018 – Federal Register Recent Federal Regulation Documents

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.

The proposed rule would allow helicopter air ambulance (HAA) operators to conduct instrument flight rules (IFR) departure and approach procedures at airports and heliports that do not have an approved weather reporting source in HAA aircraft without functioning severe weather detection equipment (airborne radar or lightning strike detection equipment), when there is no reasonable expectation of severe weather at the destination, the alternate, or along the route of flight. This rule would also update requirements to address the discontinuance of area forecasts, currently used as flight planning and pilot weather briefing aids. Additionally, this rulemaking proposes to update requirements regarding HAA departure procedures to include additional types of departure procedures that are currently acceptable for use.

These special conditions are issued for the Textron Aviation Inc. (Textron) Model 700 series airplanes. These airplanes will have novel or unusual design features when compared to the state of technology envisioned in the airworthiness standards for transport category airplanes. These design features are systems that affect structural performance, either directly or as a result of a failure or malfunction. The influence of these systems and their failure conditions must be taken into account when showing compliance with the FAA's requirements. The applicable airworthiness regulations do not contain adequate or appropriate safety standards for these design features. 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 adopting a new airworthiness directive (AD) for Embraer S.A. Models EMB-500 and EMB-505 airplanes. This AD results from mandatory continuing airworthiness information (MCAI) issued 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 improperly tied castle nuts on the aileron, rudder, and elevator trim tab (or autotab) attachment bolts. We are issuing this AD to require actions to address the unsafe condition on these products.