Well, to answer your question, there are some. The one I'm looking at doing, is the Virgin Atlantic one. It's split between LHR and LGW, and is 4yrs long.
Take a look at their website under 'engineering' (on their UK site) for some general info on their engineering division. However, for some reason, they don't seem to advertice their apprenticeship at the moment.
BA also do a 3yr apprenticeship through Kingston uni.