boshk Good, the copper pipe is intact. The top threads of the brass fitting look fine. So, I doubt the T pipe is damaged as appear fine from the photo. You may want to check if they are ok. If you are, pease be careful as they might have used a permanent thread locker. I heard from Dave they aren’t using it any more.
It’s still very strange to see the way the brass fitting is broken.
Once you get the parts, give the fittings a good clean, use plenty of PTFE tapes and put them all back. I had to use 15-16 rounds of PTFE when our steam arm elbow leaked. I think Jake did about 10. If you have put enough PTFE, you will get a good seal and should not even drop the pressure.
Please fire the machine and check before putting the frames back again.