Method and system for synchronizing a flight management system with an external device

A non-transitory computer readable medium storing a program configured to cause a computer to execute a method of transmitting a set of conforming data frames within an avionics system, the transmission of the set of conforming data frames being to a first avionics device from a second avionics device that is external the first avionics device, the method comprising:

• generating, via the second avionics device, at least one specialized message including multiple labels within the specialized message;
• transmitting, via the second avionics device, at least one specialized header frame to a data network, the at least one specialized header frame including identification information relating to an impending transmission of the set of conforming data frames;
• generating, via the second avionics device, the set of conforming data frames, with each respective conforming data frame of the set of conforming data frames being indicated as one of the sets of conforming data frames by a single bit indicator relating the respective conforming data frame to the specialized header frame;
• transmitting, via the second avionics device, at least a subset of the set of conforming data frames to the data network;
• receiving, at the first avionics device, at least one transmission including at least one of the specialized header frame or the set of conforming data frames from the avionics device;
• attempting to load, via the first avionics device, a portion of the at least one transmission into a flight plan of the first avionics device;
• determining, via the first avionics device, if the load was successful;
• generating, via the first avionics device, a status message related thereto;
• and
• periodically outputting, via the first avionics device, groups of data including a sequence number and a status message related to the sequence number.