Last Friday's BA Airbus A319 emergency was created because maintenance staff carrying out overnight post-engineering checks and aircrew carrying out pre-flight walkaround checks failed to spot that the engine cowling latches had not been secured. As an ex-BA engineering staff, I find this news reportage as per the BBC website and now on BBC's R4, quite alarming, not to say what the potential could have been with a severed fuel pipe. Thank heavens plane and pax landed safely back at EGLL.