RedactedNarrative: Vessel 1 was turning into the turning basin at east harbor marina. The port transmission locked into forward gear. The starboard motor also had a problem and stalled. Vessel 1 drifted into vessel 2 causing damage. Starboard motor was restarted and was in forward gear. Operator pulled starboard into reverse and it stalled again. Vessel 1 was pushed off of vessel 2 causing damage to bow rail. Vessel 1 then drifted into vessel 3 causing gel coat damage above gunwale.