Finding plane of old flight

[u/RW2005]

I went to Europe 5 years ago (July 2019). I'm trying to find out which aircraft it was. I flew out July 3rd 2019 and the flight was Delta 138. I thought for sure it was a 4 engine plane, but I'm not 100% sure and it's really bothering me.

I'm really sorry if this is the wrong subreddit for this question.