I don't think this points to anything significant. Caerdav are based 10 minutes down the road from CWL and their only contract currently is with Avion Express.
It could mean a couple of thing:
1) During winter they won't have staff based there, they will be based at St Athan, but available at a moments notice to go and assist at CWL for any failures or last minute requests.
2) They will take over TUI's line maintenance at CWL, which currently is in-house
3) The slim possibility that there will be another winter base (FR?)
4) An Airline is considering CWL to base over the quieter winter months where they need to be in the UK but flying isn't regular - Such as Enter Air or Fly4 Airlines (TUI's ACMI Airline)
It could mean a couple of thing:
1) During winter they won't have staff based there, they will be based at St Athan, but available at a moments notice to go and assist at CWL for any failures or last minute requests.
2) They will take over TUI's line maintenance at CWL, which currently is in-house
3) The slim possibility that there will be another winter base (FR?)
4) An Airline is considering CWL to base over the quieter winter months where they need to be in the UK but flying isn't regular - Such as Enter Air or Fly4 Airlines (TUI's ACMI Airline)