the acars was normal. i'm not convinced that the transponders were turned off. i think it's possible they just didn't receive the request to send the information that far away from the radar station. so let's take that off the table for just a second. now the aircraft drops to 12,000 feet and makes a turn. the only airport i can see it may have been attempting to get to which would make sense is paneng. a maintenance base for malaysia air. a place where if i had a problem with an aircraft that's where i would head. >> let me ask you again a layman question. if that is what they were doing, why wouldn't they have just told the airline or somebody, air traffic control? >> there's a couple of reasons for that. oxygen mask. if you have a rapid decompression which would explain why they dove and made the turn back to the maintenance base. you grab your oxygen mask and it comes out like an alien. you put over and release it and it sucks onto your face. if you then think i'm transmitting you're not. there's a ptt button, push to talk button that is right next to that mask.