On fallout new vegas, how do I attach the deployable ballast to the sunken b29 bomber?

Swim under the wings of the sunken B-29 at the bottom of Lake Mead. There you will be prompted to attach the ballast.

Tags: ballastlake meadswimfallout 
Thursday, February 02 2012

Source: http://www.youtube.com/watch?v=nMFzSBENfA8

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