Department of Transportation August 2, 2023 – Federal Register Recent Federal Regulation Documents

This action changes the effective date of a final rule published in the Federal Register on July 17, 2023, that amends the United States Area Navigation (RNAV) route T-230 in the vicinity of St. Paul Island, AK, in support of a large and comprehensive T-route modernization project for the state of Alaska. The effective date in the final rule was incorrectly stated as August 10, 2023. The correct effective date for Airspace Docket No. 19-AAL-63 is October 5, 2023.

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.

This document provides the public with notice that, on July 14, 2023, the National Railroad Passenger Corporation (Amtrak) submitted two requests for amendment (RFA). The first RFA is to Amtrak's FRA-approved Positive Train Control Safety Plan (PTCSP) and its Advanced Civil Speed Enforcement System II (ACSES II), which seeks FRA's approval to introduce modified safety server software to address a known defect and updates to type approval documentation. The second RFA is to Amtrak's FRA-certified positive train control (PTC) system for its ACSES II system, which seeks FRA's approval to install Construction Zone (CZ) transponders to support cutover activities on the Philadelphia to Washington (PW) line. As these RFAs may involve requests for FRA's approval of proposed material modifications to an FRA-certified PTC system, FRA is publishing this notice and inviting public comment on Amtrak's RFAs to its PTCSP and PTC system.

The FAA is adopting a new airworthiness directive (AD) for all The Boeing Company Model 747-8F and 747-8 series airplanes. This AD was prompted by a report of cracks in stringers, common to the end fittings, on the aft side of the bulkhead at station (STA) 2598. This AD requires detailed inspections of the stringers, common to the end fittings, forward and aft of the bulkhead at a certain station for cracking and applicable on-condition actions. The FAA is issuing this AD to address the unsafe condition on these products.