Abstract: An aircraft data collection device directed at solving problems associated with the completion and return of aircraft operational data and/or technical log data. The device is for use by a plurality of users, each of the users having associated security level. The device has a security means for identifying a user and determining their associated security level, a user interface to obtain operational and/or technical data associated with an aircraft flight cycle, from one or more of the plurality of users. Each item of data has an associated security level, wherein the user interface only accepts an item of data from a user when the authorisation level of the user at least matches the authorisation level of the item of data.