Associated Press - November 4, 2009 4:25 PM ET

SAN DIEGO (AP) - The Coast Guard plans a memorial service for seven members who died in a collision with a Marine helicopter near San Diego last week.

The Coast Guard said Wednesday the ceremony will be held Friday at Air Station Sacramento, where the crew of the C-130 was based. The service will be closed to the public but transmitted live over the Internet.

The plane with seven people onboard was searching for a missing boater when it collided Thursday night with a Marine Corps AH-1W Super Cobra helicopter on a training exercise. The helicopter's two-man crew also died. A Marine spokesman, Maj. Jay Delarosa, said a memorial was not yet scheduled.

Petty Officer 2nd Class Monica L. Beacham, 29, of Decaturville, Tenn., was aboard the Coast Guard plane.

A joint Marines-Coast Guard board is investigating the cause of the crash.

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