SHN 03
SHN 03 was an Class C shuttlecraft attached to the  in 2239.

In 2239, Lieutenant Philippa Georgiou was given special permission by Starfleet to land the shuttle on the surface of Kaminar and make first contact with Saru, a Kelpien. Saru left with Georgiou aboard the shuttle, which jumped to warp in the planet's atmosphere and was seen by Siranna. (; )

Background information 

When the shuttle was first shown in , it bore the registry "SHN 03", apparently suggesting that the shuttle was attached to the . Dialogue in  established that Lt. Georgiou was serving aboard the  when she made contact with Saru; in footage from "The Brightest Star" reused in "The Sounds of Thunder", the "SHN" was removed, so the shuttle's visible registry is merely "03".
Federation shuttles