A communication system of a gas turbine engine for an aircraft, the communication system comprising: an engine control system configured to generate engine data; and a communication device comprising: a memory system configured to store the generated engine data from the engine control system; a communication interface configured to wirelessly communicate with an offboard system external to the aircraft and to communicate with the engine control system and the memory system, the communication interface further configured to receive the generated engine data from the engine control system; and characterised by processing circuitry configured to: selectively record the generated engine data received by the communication interface to the memory system; determine a location of the gas turbine engine; determine a unique data management strategy based on the determined location, the unique data management strategy including data sharing and encryption rules for the determined location; and transmit, using the communication interface, a first portion of the recorded engine data to the offboard system, a data content of the first portion of the recorded engine data based on the unique data management strategy. an engine control system configured to generate engine data; and a communication device comprising: a memory system configured to store the generated engine data from the engine control system; a communication interface configured to wirelessly communicate with an offboard system external to the aircraft and to communicate with the engine control system and the memory system, the communication interface further configured to receive the generated engine data from the engine control system; and characterised by processing circuitry configured to: selectively record the generated engine data received by the communication interface to the memory system; determine a location of the gas turbine engine; determine a unique data management strategy based on the determined location, the unique data management strategy including data sharing and encryption rules for the determined location; and transmit, using the communication interface, a first portion of the recorded engine data to the offboard system, a data content of the first portion of the recorded engine data based on the unique data management strategy. a memory system configured to store the generated engine data from the engine control system; a communication interface configured to wirelessly communicate with an offboard system external to the aircraft and to communicate with the engine control system and the memory system, the communication interface further configured to receive the generated engine data from the engine control system; and characterised by processing circuitry configured to: selectively record the generated engine data received by the communication interface to the memory system; determine a location of the gas turbine engine; determine a unique data management strategy based on the determined location, the unique data management strategy including data sharing and encryption rules for the determined location; and transmit, using the communication interface, a first portion of the recorded engine data to the offboard system, a data content of the first portion of the recorded engine data based on the unique data management strategy. selectively record the generated engine data received by the communication interface to the memory system; determine a location of the gas turbine engine; determine a unique data management strategy based on the determined location, the unique data management strategy including data sharing and encryption rules for the determined location; and transmit, using the communication interface, a first portion of the recorded engine data to the offboard system, a data content of the first portion of the recorded engine data based on the unique data management strategy.