The USS Port Royal sheared off the blades of its two propellers, damaged the sonar bulb that extends from its bow and left its anchors, anchor chains and other debris on the ocean floor during the nearly five days it was stuck on a rock and sand ledge just off Honolulu Airport's Reef Runway, the Navy said today.

The $1 billion, guided missile cruiser sat at Pearl Harbor's Mike 3 pier this afternoon as Navy divers ran a remotely operated vehicle underneath it looking for possible other damage.

The Port Royal had just spent four months in drydock when it ran aground in 17 to 22 feet of water Thursday night following its first day of sea trials.

It will return to drydock at the end of this week for repairs, said Rear Adm. Joseph A. Walsh, deputy commander and chief of staff of the Pacific Fleet.

He could not provide an estimate on the cost of the damage or the cost of the effort to refloat the Port Royal.

"Obviously we are just very pleased that the ship did come free last night," Walsh said.

Navy officials had hoped to refloat the Port Royal on its third attempt early Sunday morning but rough seas prevented them from off-loading 200 tons of fuel and water.

Instead, the Navy dumped 500 tons of seawater ballast into the ocean, dropped its anchors and anchor chains and used more powerful tow and tug boats to finally pull the Port Royal off of its perch early this morning.