Crash involving lionair, indonesia, boeing began to look at fixes. and the faa was looking over their shoulder. so i suspect, much like happened with the 787 dreamliner, that was -- it was a battery problem. he took them four months to get that aircraft back in the air. i suspect we are looking at a few months. because boeing and the faa are are already looking at this. >> harris: doctor, forgive me for stepping on you. we have to get this breaking news. i will bring you back at another time. i so appreciate your time and expertise. you taught us a lot today, thank you. we need to get to the b...