Airworthiness Directives; The Boeing Company Airplanes

FAA / Federal Register · 2019-16815

The FAA proposes to adopt a new airworthiness directive (AD) for all The Boeing Company Model 747-400, 747-400F, 747-8F, and 747-8 series airplanes. This proposed AD was prompted by reports of dual flight management computer (FMC) cold starts during a critical flight phase such as takeoff and approach. This proposed AD would require an inspection to determine if certain software is installed, installation of FMC operational program software (OPS) and a software configuration check, and applicable concurrent requirements. The FAA is proposing this AD to address the unsafe condition on these products.