never an incident which doing some of these test flights, they were notified by cfm, may be an issuee engines and will suspend the flights while they investigate this. the potential, could be significant, keep in mind, they have done no deliveries yet and no indication at this point particular boeing they will delay first deliveries which begin next week. >> you mentioned, phil. general electric, one of the makers of leap engine, that stock is ticking off a little, off this news. as i understand it, phil, from reporting a did a few years b k back, the leap engine used 3d printed parts. i wonder if that makes it more possible to figure what is wrong with this engine and fix it faster? >> yeah. well, based on the limited information we have so far, boeing has been notified by cfm of a particular issue with a particular part and they're investigating that. whether or not that was 3d manufactured or some other fashion we don't know at this point. fairly quickly, ever been to ge aviation, their facility outside of cincinnati. >> yes, i have. >> they know quickly when there's a particular