About that 727 incident, I don't see why any explanation has to be made about the apparent erasure of the CVR. The obnly reason why such a 'spy in the sky' was permitted in our 'offices' was that it was a post-accident investigation device should there be no other way of establishing the events . If the pilots are there to give evidence, then there is no allowable function for the CVR to serve, so it must not be used. That was the basis we accepted the darn thing in the first place. Now it is apparently used as a prosecution device by lawyers against pilots. If anyone is alive to erase it, then it should be erased.