This may or may not be flash fiction. It is according to some samples I have read. It has a sci-fi theme. International radio protocol has the calling station say who they are calling too followed by their identity. The receiving station replies by stating their identity and then the original caller's identity. The words pan-pan repeated three times indicate we are sinking, on fire, or have a fatal malfunction. When a pan=pan call loses communication it is usually disastrous.
Flash fiction attempt
MissionT-163 to Ursus 19 Prime
Following the simultaneous bright flash and a loud thump, the ship shook so hard I had to take manual control. ST 1 this is T-1-6-3 pan-pan...pan-pan...pan-pan ov.. T-1-6.....crackle...zzzh....