Airworthiness Directives; The Boeing Company Airplanes

 U.S.C. 1510.  The Code of Federal Regulations is sold by the Superintendent of Documents.  ========================================================================  Federal Register / Vol. 91, No. 114 / Monday, June 15, 2026 / Rules and Regulations [[Page 35873]] DEPARTMENT OF TRANSPORTATION Federal Aviation Administration 14 CFR Part 39 [Docket No. FAA-2025-3426; Project Identifier AD-2025-00342-T; Amendment 39-23377; AD 2026-12-07] RIN 2120-AA64 Airworthiness Directives; The Boeing Company Airplanes AGENCY: Federal Aviation Administration (FAA), DOT. ACTION: Final rule. ----------------------------------------------------------------------- SUMMARY: The FAA is adopting a new airworthiness directive (AD) for certain The Boeing Company Model 787-8, 787-9, and 787-10 airplanes. This AD was prompted by reports of an uncommanded change to the mode control panel (MCP) selected altitude. This AD requires replacing the existing MCP with an updated MCP and performing an installation test. The FAA is issuing this AD to address the unsafe condition on these products. DATES: This AD is effective July 20, 2026. The Director of the Federal Register approved the incorporation by reference of a certain publication listed in this AD as of July 20, 2026. ADDRESSES: AD Docket: You may examine the AD docket at regulations.gov under Docket No. FAA-2025-3426; or in person at Docket Opera