Landing Gear Alert Design of Civil Aircraft Based on System Engineering

In order to effectively improve the accuracy of landing gear alert and improve the safety of aircraft during landing, this paper analyzes the landing gear alert of civil aircraft from four aspects: need capture, function definition, requirement analysis and design synthesis based on the “N-F-R-P” system engineering forward design model, so as to obtain the landing gear alert design scheme. The design of the alert takes into account the needs of various stakeholders, including customers, regulators and investors, so that the design of the landing gear alert can meet the airworthiness regulations, while ensuring its reliability, effectiveness and avoiding false alerts. The alert scheme can avoid false alert when the aircraft is in any non-landing phase and reduce the interference to the flight crew. At the same time, it can effectively alert the flight crew to the incorrect landing configuration during the landing phase and obtain the attention of the flight crew. The flight crew can take timely and accurate measures according to the alert instructions to ensure flight safety.