TX56 & TX57 Service Bulletins For Pilots
TX56 & TX57 NAV/COM
Software versions run numerically, the higher the number the more recent the release – so the latest software will always include all the features of earlier versions.
15/02/2023 version 1.0
A very limited number of TX56/56A units were shipped with a potentially defective locking cam screw. These units were shipped between 31st October 2022 and 28th November 2022. This hardware service bulletin defines the range of serial numbers affected, indicates the process to identify a defective locking cam screw and provides guidance on the rectification process.
27/01/2023 version – Current software version