Patent ID: 8660715

Claim:
A method for operating and automatically monitoring a flight management assembly for an aircraft implementing air operations requiring navigation and guidance performance, the flight management assembly comprising a first flight management system and a second flight management system, and the method comprising: operating the first and second flight management systems in dual mode so that the first flight management system acts as a master system and the second flight management system acts as a slave system with intercommunication between the master and slave systems, detecting, with an obligation detection device of the first flight management system, an obligation to implement an operation affecting a flight plan of the first flight management system, emitting a request, with a communication device of the first flight management system, to the second flight management system, the request requiring to carry out at least one operation affecting the flight plan of the second flight management system, upon emitting the request, checking, with a change condition verification device operatively coupled to the second flight management system, that conditions for implementing the request are met; and performing one of the following operations, with a change implementation device of the second flight management system, as a function of the checking step: if the conditions are met, implementing the request at the second flight management system and the first and second flight management systems thereby continue to operate in dual mode with the first flight management system acting as the master system and communicating with the second flight management system acting as the slave system; or if the conditions are not met, blocking implementation of the request at the second flight management system, such that the first and second flight management systems will operate in an independent mode in which the first and second flight management systems do not operate as master and slave systems with intercommunication between the master and slave systems, and emitting a warning signal with alarm devices to notify a crew of the aircraft regarding the independent mode of operation being used.