RedactedNarrative: On 08-31-2014 at approx. 1639 hours, vessel #1 was south bound (wakeless speed) in the london bridge channel when an unknown vessel allegedly pulled off the beach causing the operator of vessel #1 to put the vessel in reverse and back up into vessel #2 (south bound) which was in neutral from a wakeless speed. Vessel #1 struck vessel #2 causing fiberglass damage to vessel #2 and swim step damage, rear compartment damage to vessel #1.