Let me see here, if I look on avherald.com and keyword search "Delta" I know I can find at least one incident of an engine failure.....

And I found a few 744 ones but let me keep looking... Ah here, a 764 on July 18th. Engine failure, divert to San Juan. Needed a new engine which according to the article was flown in on a Kalitta 747.

Now, using TA2015/C2012 logic, what are you willing to give up to get a new engine for a jet? I mean I know it's a common thing to replace a broken part with a new one to keep an asset operating, just like it's a common thing to replace old equipment, like airplanes, with newer ones. But in the case of aircraft acquisitions, you need to give up something. Because we know you want new airplanes. Otherwise, why would a 60 jet acquisition be in a TA? It's a sweetner, no?

No way is a 739 and early batch E190 order a concession, righ.... wait. Don't answer that. I might have just messed this whole thought up. Standby. I'm on the landline. But don't worry, I know it's quiet hours but I'm still going to make a really long and loud PA at 0645 in the morning when I get this straight.

1.81++++++ doesn't do anything for you but it sounds good.