I think your all missing the main point here, does'nt matter at the end of the day whether you operate twin engined aircraft or those with four engines. What matters is that they are maintained to the highest levels, no short cuts and no risks. Companies must start to realise that although engineering departments are a huge drain on airlines funds, they are there for a purpose and without them being run to a high standard the airline is not only risking passenger safety but the also the complete operation of the airline.Lets hope the bosses of various airlines wake up and realise that although we need to be a profit making industry we also need to have the manpower to remain safe. Without consumer confidence we will not remain profitable.