Federal Aviation Administration May 26, 2017 – Federal Register Recent Federal Regulation Documents

These special conditions are issued for non-rechargeable lithium battery installations on the Textron Aviation Inc. (Textron) Model 700 airplane. Non-rechargeable lithium batteries are a novel or unusual design feature when compared to the state of technology envisioned in the airworthiness standards for transport category airplanes. The applicable airworthiness regulations do not contain adequate or appropriate safety standards for this design feature. 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.

These special conditions are issued for non-rechargeable lithium battery installations on the Embraer S. A. (Embraer) Model EMB- 550 airplane. Non-rechargeable lithium batteries are a novel or unusual design feature when compared to the state of technology envisioned in the airworthiness standards for transport category airplanes. The applicable airworthiness regulations do not contain adequate or appropriate safety standards for this design feature. 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.

This action proposes to amend Class E airspace extending upward from 700 feet above the surface at Midland International Air and Space Port Airport (formerly Midland International Airport), Midland, TX, due to the closing of Mabee Ranch Airport, decommissioning of the Mabee non-directional radio beacon (NDB), and cancellation of NDB approaches at Mabee Ranch Airport. Additionally, this proposal would establish Class E airspace extending upward from 700 feet above the surface at Odessa Airport-Schlemeyer Field, Odessa, TX, and Midland Airpark, Midland, TX, to accommodate special instrument approach procedures developed at these airports to enhance the safety and management of standard instrument approach procedures for instrument flight rules (IFR) operations. Also, this proposal would make an editorial change to the legal descriptions by replacing Airport/ Facility Directory with the term Chart Supplement, and would change the airport name to Midland International Air and Space Port Airport.

This action proposes to modify Class E airspace extending upward from 700 feet above the surface at Oskaloosa Municipal Airport, Oskaloosa, IA, to accommodate new standard instrument approach procedures for instrument flight rules (IFR) operations at the airport. This action is necessary due to the decommissioning of the Oskaloosa non directional radio beacon (NDB), and cancellation of the NDB approach procedure, and would enhance the safety and management of IFR operations at the airport.

We propose to adopt a new airworthiness directive (AD) for certain Rolls-Royce Deutschland Ltd & Co KG (RRD) model Tay 620-15 turbofan engines. This proposed AD was prompted by RRD recalculating the life limit for certain high-pressure compressor (HPC) stage 12 rotor disks. This proposed AD would require reducing the maximum approved life limit. We are proposing this AD to correct the unsafe condition on these products.

This action proposes to establish Class E airspace extending upward from 700 feet above the surface at Ashburn, GA, to accommodate new Area Navigation (RNAV) Global Positioning System (GPS) Standard Instrument Approach Procedures (SIAPs) serving Turner County Airport. Controlled airspace is necessary for the safety and management of instrument flight rules (IFR) operations at the airport.

This action proposes to establish Class E airspace at Johnson City, TN, to accommodate new Area Navigation (RNAV) Global Positioning System (GPS) standard instrument approach procedures (SIAPs) serving Johnson City Medical Center Heliport. Controlled airspace is necessary for the safety and management of instrument flight rules (IFR) operations at the heliport.

We propose to supersede Airworthiness Directive (AD) 2016-11- 20, which applies to certain B/E Aerospace protective breathing equipment (PBE) that is installed on airplanes. AD 2016-11-20 requires replacing part number (P/N) 119003-11 PBE units. Since we issued AD 2016-11-20, we received a report that PBE units, P/N 119003-21, within a certain serial number range are made with candle tube material determined to have a low yield strength and may be volatile upon use or disposal. This proposed AD would retain the actions required in AD 2016-11-20 and would require inspecting and replacing P/N 119003-11 and 119003-21 PBE units. We are proposing this AD to correct the unsafe condition on these products.