Federal Aviation Administration August 19, 2024 – Federal Register Recent Federal Regulation Documents

The FAA proposes to adopt a new airworthiness directive (AD) for certain Pratt & Whitney (PW) Model PW1519G, PW1521G, PW1521GA, PW1521G-3, PW1524G, PW1524G-3, PW1525G, PW1525G-3, PW1919G, PW1921G, PW1922G, PW1923G, and PW1923G-A engines with a certain high-pressure compressor (HPC) 7th-stage axial rotor installed. This proposed AD was prompted by an analysis of an event involving an International Aero Engines, LLC (IAE LLC) Model PW1127GA-JM engine, which experienced an HPC 7th-stage integrally bladed rotor (IBR-7) separation that resulted in an aborted takeoff. This proposed AD would require performing initial and repetitive angled ultrasonic inspections (AUSI) of certain HPC 7th-stage axial rotors for cracks and replacing the HPC 7th-stage axial rotors if necessary. The FAA is proposing this AD to address the unsafe condition on these products.

This action amends Jet Route J-211 and revokes Very High Frequency Omnidirectional Range (VOR) Federal Airway V-41. The FAA is taking this action due to the planned decommissioning of the VOR portion of the Youngstown, OH (YNG), VOR/Tactical Air Navigation (VORTAC) navigational aid (NAVAID). The Youngstown VOR is being decommissioned in support of the FAA's VOR Minimum Operational Network (MON) program.