October 23, 2017 – Federal Register Recent Federal Regulation Documents

We are adopting a new airworthiness directive (AD) for certain Airbus Model A300 B4-600, B4-600R, and F4-600R series airplanes, and Model A300 C4-605R Variant F airplanes (collectively called Model A300- 600 series airplanes); and Model A310 series airplanes. This AD was prompted by a report of cracking in the door sill area of the aft cargo door. This AD requires repetitive inspections of the aft cargo door lower torsion box area, and corrective actions if necessary. We are issuing this AD to address the unsafe condition on these products.

We are adopting a new airworthiness directive (AD) for certain Gulfstream Aerospace LP Model Gulfstream 100, Astra SPX, and 1125 Westwind Astra airplanes. This AD was prompted by a report indicating that the main entrance door (MED) opened during flight, and by the determination that the ``CABIN DOOR UNLOCK'' crew alerting system (CAS) message may extinguish before the handle latch pin is fully engaged. This AD requires accomplishing an updated rigging procedure for the adjustment of the MED microswitch. We are issuing this AD to address the unsafe condition on these products.

The Environmental Protection Agency (EPA) proposes to approve a source-specific revision to the New York State Implementation Plan (SIP). The SIP revision establishes Best Available Retrofit Technology (BART) emission limits for sulfur dioxide that are identical to those set by the EPA's Federal Implementation Plan (FIP) for the Roseton Generating Station, Units 1 and 2, which was promulgated in an action taken on August 28, 2012. The EPA proposes to find that the SIP revision fulfills the requirements of the Clean Air Act and the EPA's Regional Haze Rule for the Roseton Generating Station, Units 1 and 2. In conjunction with this proposed approval, we propose to withdraw those portions of the FIP that address BART for the Roseton Generating Station, Units 1 and 2.