It looks like for some reason the receiving system is cutting off the message before it processes the whole message. In the first message that says “Complete message received” notice how you have the two squares at the end of the message. I’m sure this represents the /28/13. Notice how the message that says “Received Partial Message” just quits at in the middle of the IN1 segment. Than you see another “Complete message received” and see the rest of the message with a /28/13 at the end.
If you can confirm in your outbound smat file that the 7303165 message as the ZNM segment in it, I think you can safely say that it’s not the engine sending out an imcomplete message. (the engine wouldn’t do this anyway but the vendor is going to need proff that it’s their problem). Maybe they have some kind of length constraint on messages or on segments that is choping the message off.
