Department of Transportation March 23, 2023 – Federal Register Recent Federal Regulation Documents

This action amends the Chicago, IL, Class C airspace area surrounding the Chicago Midway International Airport, IL (MDW), by extending the existing Class C airspace shelf within 10 nautical miles (NM) of MDW from the southeast counterclockwise to the northeast. The FAA is taking this action to reduce the risk of midair collisions and enhance the efficient management of air traffic operations in the MDW terminal area.

The FAA is revising a notice of proposed rulemaking (NPRM) to supersede Airworthiness Directive (AD) 2020-20-05 and AD 2022-09-16, which applies to certain Airbus SAS Model A318 series; A319-111, -112, -113, -114, -115, -131, -132, -133, -151N, and -153N; A320 series; and A321 series airplanes. This action revises the NPRM by adding new and revised tasks and limitations that must be incorporated into the existing maintenance or inspection program. The FAA is proposing this AD to address the unsafe condition on these products. Since these actions would impose an additional burden over those in the NPRM, the FAA is reopening the comment period to allow the public the chance to comment on these changes.

The FAA proposes to supersede Airworthiness Directive (AD) 2021-26-13, which applies to all Rolls-Royce Deutschland Ltd & Co KG (RRD) Trent 1000-A2, Trent 1000-AE2, Trent 1000-C2, Trent 1000-CE2, Trent 1000-D2, Trent 1000-E2, Trent 1000-G2, Trent 1000-H2, Trent 1000- J2, Trent 1000-K2, and Trent 1000-L2 model turbofan engines. AD 2021- 26-13 requires revision of the engine Time Limits Manual (TLM) life limits of certain critical rotating parts and direct accumulation counting (DAC) data files. Since the FAA issued AD 2021-26-13, RRD has revised the TLM with more restrictive airworthiness limitations, including updated life limits for certain critical parts and updated DAC data files. This proposed AD would require revising the existing approved maintenance or inspection program, as applicable, to incorporate more restrictive airworthiness limitations, as specified in a European Union Aviation Safety Agency (EASA) AD, which is proposed for incorporation by reference (IBR). The FAA is proposing this AD to address the unsafe condition on these products.

This action proposes to revoke Jet Route J-184 and establish Area Navigation (RNAV) route Q-180 in the southwest United States. The existing Jet Route has service limitations associated with signal coverage related issues. The new RNAV route would replace the Jet Route, as well as provide additional RNAV routing within the National Airspace System (NAS) in support of transitioning it from a ground- based to satellite-based navigation system.