Regarding ( splash 1 - X )

John Chesire , former us fighter pilot

"Splash” was the code word we used for shooting down an enemy aircraft.

For instance: “Splash one MiG-21” indicates that aircraft has been shot down by you but says nothing about its pilot.

https://www.quora.com/What-are-the-different-uses-of-the-word-splash-in-the-military

Also not sure if significant but

Check_in_Z[des_TFC]381

The gemantra for TFC is

19 6 3 ?