Federal Aviation Administration July 2, 2019 – Federal Register Recent Federal Regulation Documents

Notice is being given that the FAA is considering a request from the Mobile Airport Authority to waive the requirement that 7.50 acres of airport property located at the Mobile Downtown Airport in Mobile, Alabama, be used for aeronautical purposes.

This action proposes special conditions for the Gulfstream Aerospace Corporation (Gulfstream) Model GVII series airplane. These airplanes, as modified by Gulfstream, will have a novel or unusual design feature when compared to the state of technology envisioned in the airworthiness standards for transport-category airplanes. This design feature is electro-hydraulically actuated seats equipped with backup power supply. The applicable airworthiness regulations do not contain adequate or appropriate safety standards for this design feature. These proposed 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.

The FAA proposes to supersede Airworthiness Directive (AD) 2017-15-04, which applies to certain The Boeing Company Model 787-8 and 787-9 airplanes. AD 2017-15-04 requires replacement of affected electromechanical actuators (EMAs). Since AD 2017-15-04 was issued, the FAA has determined that discrepant EMAs may have been installed on airplanes outside the original applicability of AD 2017-15-04. This proposed AD would retain the requirements of AD 2017-15-04, expand the applicability to include all The Boeing Company Model 787 series airplanes, and add a new requirement to identify, for certain airplanes, the part number of EMAs and replace affected EMAs. The FAA is proposing this AD to address the unsafe condition on these products.