Federal Aviation Administration July 12, 2023 – Federal Register Recent Federal Regulation Documents

The FAA, in cooperation with the National Park Service (NPS), has initiated development of an ATMP for Bandelier National Monument (the Park) pursuant to the National Parks Air Tour Management Act of 2000 and its implementing regulations. This notice announces the public availability of the draft ATMP and draft EA for comment and the date of the public meeting for the Park in accordance with National Parks Air Tour Management Act of 2000 and National Environmental Policy Act (NEPA) of 1969. The purpose of the public meeting is to review the draft ATMP with the public. The draft ATMP provides acceptable and effective measures to mitigate or prevent the significant adverse impacts, if any, of commercial air tour operations upon the Park's natural and cultural resources and visitor experiences, as well as on tribal lands. In accordance with Section 106 of the National Historic Preservation Act, the FAA and the NPS are also seeking public comment on the potential of the draft ATMP to cause adverse effects to historic properties.

The FAA is superseding Airworthiness Directive (AD) 2023-06- 13, which applied to all Bombardier, Inc., Model BD-700-2A12 airplanes. AD 2023-06-13 required revising the existing airplane flight manual (AFM) with new limitations to mitigate identified hazards due to interference from wireless broadband operations in the 3.7-3.98 GHz frequency band (5G C-Band) as identified by Notices to Air Missions (NOTAMs). Since the FAA issued AD 2023-06-13, the FAA determined that additional limitations are needed due to the continued deployment of new 5G C-Band stations whose signals are expected to cover most of the contiguous United States at transmission frequencies between 3.7-3.98 GHz. This AD requires revising the limitations section of the existing AFM to incorporate limitations prohibiting dispatch under certain master minimum equipment list (MMEL) items. The FAA is issuing this AD to address the unsafe condition on these products.

This notice rescinds a declaration of compliance (DOC) for the DJI Mavic Pro Platinum unmanned aircraft with the assigned tracking number RID000000111 that the FAA-accepted on January 19, 2023, effective immediately.

The FAA proposes to adopt a new airworthiness directive (AD) for all MHI RJ Aviation ULC Model CL-600-2B19 (Regional Jet Series 100 & 440) airplanes. This proposed AD was prompted by a report of missing insulation in the engine pylon area. This proposed AD would require, for certain airplanes, inspecting the engine pylon structure for discrepancies and repair if necessary. This proposed AD would also require revising the existing maintenance or inspection program, as applicable, to incorporate a new certification maintenance requirement (CMR) task. The FAA is proposing this AD to address the unsafe condition on these products.

The FAA proposes to supersede Airworthiness Directive (AD) 2020-15-07, which applies to certain Rolls-Royce Deutschland Ltd & Co KG (RRD) (type certificate previously held by Rolls-Royce plc) Model RB211-524G2-19, RB211-524G2-T-19, RB211-524G3-19, RB211-524G3-T-19, RB211-524H2-19, RB211-524H2-T-19, RB211-524H-36, and RB211-524H-T-36 engines. AD 2020-15-07 requires replacement of the low-pressure turbine (LPT) stage 1 disk with part number (P/N) UL37606, UL37607, UL37608, UL37722 or UL37790, installed. Since the FAA issued AD 2020-15-07, RRD determined that additional LPT stage 1 disks are affected by the unsafe condition, and updated the Aircraft Maintenance Manual (AMM) to add new component life limits. This proposed AD would retain the requirement to replace the LPT stage 1 disk and would include additional LPT stage 1 disks, 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.