The wiki is maintained by players and not always kept updatedIf you read through the Wiki
this thread should shed a lot of light
Fleet carrier decommissioning demystified; and the mistakes in the in-game Codex
The actual mechanics of decommissioning a fleet carrier are mysterious and opaque, so the Fleet Carrier Owners Club spent some time, effort and about 700 million credits putting it to the test. (We got 500 million back eventually.) There are several conflicting sources of information about the...
forums.frontier.co.uk