Coast Guard Cutter Liberty stationed in Auke Bay responded to assist early today.
While the Liberty was en route to the scene, Spirit of Columbia effected repairs to both main generators but still had only one operable propeller.
Escorted by Liberty, Spirit of Columbia is estimated to arrive in Auke Bay at 4:30 p.m. today.
The Spirit of Columbia does not know what caused the propeller engine to stop working.
No injuries have been reported. The cause of the incident is under investigation.