AIRCRAFT SYSTEM AND METHOD

Disclosed is a method of communicating configuration data of a tire pressure monitoring device configured to be affixed to a wheel in use. The method includes, at the tire pressure monitoring device, receiving (102) a request to confirm configuration data, and responsive to receipt of the request to confirm configuration data, transmitting (104) a configuration data signal which encodes the configuration data. The configuration data signal is configured to be received and understood by a human.