During submarine maneuvers off Honolulu, Hawaii on 25 March 1915, she sank at a depth of 306 ft (93 m), 1.5 mi (2.4 km) from the harbor.

The ship's electrician's mate 3rd class, James Morton Hoggett, was not on shore leave as was commonly reported.

[3] Despite the valiant efforts of the Honolulu naval authorities to locate the missing boat and save her crew, all 21 aboard perished.

Divers descended to attach cables to tow the boat into shallow water, Naval Constructor Julius A. Furer, Rear Admiral C.B.T.

Others believe that the bypassing of an unreliable magnetic reducer closed a Kingston valve in the forward ballast tank resulting in a delay.