Federal Aviation Administration April 6, 2017 – Federal Register Recent Federal Regulation Documents

The FAA is issuing this notice to advise the public of the renewal of the RTCA Charter (FAA Order 1110.77W) for 6 months, effective April 1, 2017. The Federal Aviation Administration (FAA) is authorized to establish the RTCA advisory committee in accordance with the provisions of the Federal Advisory Committee Act (FACA). The current charter agreement requires that the RTCA manage various Federal subcommittees on behalf of the agency. The objective of the advisory committee is to seek resolution of issues and challenges involving air transportation concepts, requirements, operational capabilities, the associated use of technology, and related considerations to aeronautical operations that affect the future of the Air Traffic Management System and the integration of new technologies.

We are superseding Airworthiness Directive (AD) 2013-24-17 for General Electric Company (GE) GE90-110B1 and GE90-115B turbofan engines with certain high-pressure compressor (HPC) rotor stage 2-5 spools installed. AD 2013-24-17 required removing these spools from service at times determined by a drawdown plan. This AD retains the same requirements as AD 2013-24-17. This AD also adds additional part number (P/N) HPC spools to the applicability. This AD was prompted by reports of cracking on these additional spools. We are issuing this AD to correct the unsafe condition on these products.