Agree with Nigel on Draft. Although I don't consider the previous decision to carry on from 100ft over west coast USA across the Atlantic with an engine shut down as being particularly clever, the return-to-launch-site of an aeroplane from Europe is hardly Shock! Horror! news given the mutliplicity of available bolt holes en-route.
Plus, as Nigel has said, an airline with quite a large number of aircraft of a specific type will, statistically have its associated share of tech problems. Nothing unusual about that - it's when that ratio becomes disproportionate that people should perhaps feel concerned. And I doubt whether ba have had that!
Damn - sounds like I'm sticking up for them for once....