NCC-1701\5A
NCC-1701\5A was the registry of a Starfleet aqua-shuttle that was attached to the Federation starship  during the mid-23rd century.

In 2269, Captain Kirk, Commander Spock, Dr. McCoy and Lieutenant Clayton transported down to the planet  to study its formation aboard the aquashuttle. 

The aquashuttle was attacked by a sur-snake, and eventually destroyed. During the final moments, McCoy and Clayton were thrown clear. Kirk and Spock, however, were not as fortunate, and were taken down in the shuttle, by the sur-snake. 

Five days later, Commander Scott, while traveling aboard a scouter-gig, discovered Kirk and Spock near the remains of the destroyed aquashuttle. ()

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1701\5A