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Sunday, April 29, 2001

Shallow waters, strong currents combine
to present challenge for USS Safeguard

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Navy divers and their helpers listen intently to a briefing before descending to the floor of the Pacific Ocean off northern Japan to recover F-16 debris.

ABOARD THE USS SAFEGUARD — Navy divers are battling strong currents to recover debris of a Misawa F-16 that crashed April 3 near Ripsaw Range.

Divers are searching in 20 feet of water in the Pacific Ocean for pieces of the $20 million aircraft.

"Shallow waters [generally] have stronger currents than deeper water," says Lt. j.g. Rebecca Aten, 25, a dive officer aboard the Sasebo-based Safeguard salvage ship. "It can get rough at times underwater."

Navy divers and explosive ordnance disposal specialists aboard the Safeguard arrived April 21 at the crash site off Northern Japan. They have been working around the clock to retrieve debris that is rapidly hidden by shifting sands on the ocean floor.

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Two people help adjust the diving helmet of Petty Officer 1st Class Eugene Jahrling before he and another Navy diver begin a two-hour work session on the floor of the Pacific Ocean retrieving F-16 debris.

EOD specialists in rubber boats use hand-held sonar units to locate debris, then mark it with bright orange buoys for divers to recover.

On Thursday, the ship returned to Hachinohe port, about 20 miles to the south, to off-load debris retrieved the previous two days.

That bounty included the aircraft’s radar unit, nose strut, front cockpit section and a portion of the fuselage.

The F-16’s engine was found last weekend. Investigators at Misawa Air Base quickly tore down the critical component, looking for clues that might explain why the aircraft malfunctioned.

The stern of the 255-foot-long Safeguard is where divers prepare for their dives. Two go into the water, and a third remains on deck as a reserve.

Aten said it takes 30 minutes to prepare each diver, who wears the Navy’s Mark-21 dive suit topped off with a 26-pound yellow diving helmet.

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Navy divers Petty Officer 1st Class Eugene Jahrling and Petty Officer 3rd Class Kelso Sharp are lowered into Pacific Ocean waters aboard a device called a stage to look for debris from an F-16 that crashed April 3.

"They wear wet suits beneath their dive suits, and a lot of weights since the water is so shallow here," said Aten, the only female diver on the ship.

Each diver’s suit is tethered to 600 feet of bundled color-coded tubes consisting of breathing air, a back-up hose and a communication line. The colorful hoses make the position of divers easier to monitor from the ship.

"In case the hoses fail, we also wear a tank of air that would help get us up to the surface," said Aten, a 1998 Naval Academy graduate who went through six months of Navy dive school followed by seven weeks of salvage school at Panama City, Fla.

Water temperatures hovered around the 44-degree mark as Aten and fellow divers slid below the surface this week.

"As long as you keep moving you don’t feel the cold," Aten said. "After an hour it begins to set in, but we just keep on working."

Because of the shallow depths, divers wear about 30 pounds of weights to control buoyancy.

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Petty Officer 2nd Class Mark Sawyer uses a communications box to talk to Navy divers working on the floor of the Pacific Ocean.

"Divers need a strong mind and a strong will, too," says Petty Officer 2nd Class William Phillips, 29, a four-year Navy diver who helped look for bodies following the Alaska Airlines crash off Point Magu, Calif., that claimed 88 lives last year.

When he isn’t scheduled to dive, Phillips helps divers prepare and is one of several people on deck who control diver’s movements.

No one goes over the side, however, until they get the OK from Senior Chief Petty Officer Jimmie Plummer, a master diver who has made more dives than he can recall during his 16 years in the Navy.

Plummer is the ship’s "Godfather" when it comes to the divers.

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Sea water runs down the face of Petty Officer 3rd Class Kelso Sharp as his diving helmet is removed following a two-hour dive in the Pacific Ocean.

He oversees topside preparations and monitors underwater movements by listening to divers’ voices coming from a tinny speaker in a communications box.

"I’ll get into the water when I have to look at something critical, or to tell a diver how I want something rigged," says Plummer, who keeps his diving proficiency by completing four dives every six months. "I tell my divers, ‘Don’t be heroes, just get the job done.’"

As a master diver, the top rung in the Navy’s diving career field, Plummer draws an extra $500 a month in hazardous duty and proficiency pay. Officers like Aten get a flat rate of $245 monthly.

Diving can be a risky profession, says the Safeguard’s hospital corpsman, Chief Petty Officer Michael Wenzel.

"The most life-threatening emergency for a diver is to have an arterial air embolism, air bubbles in the bloodstream," Wenzel says. "That can happen if divers come back to the surface in an uncontrolled manner."

The Safeguard has a decompression chamber where divers would spent time to have bubbles expelled from their bodies if necessary.

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Petty Officer 1st Class Eugene Jahrling signals to Navy dive officers he is OK following his two-hour dive in the Pacific Ocean.

To prevent that from happening, Wenzel says everything is done deliberately and by the book, namely, the Navy Dive manual. A copy of the latest revision is on a table near where divers go over the side.

During most salvage operations, the standard anchoring method is to drop a 7,000-pound anchor from the ship’s bow and a 6,000-pounder from the stern, said Lt. Billy Block, the Safeguard’s executive officer, who is also dive-qualified. This two-point mooring set-up allows Safeguard helmsmen to keep the ship steady in windy conditions.

"What makes this salvage operation a tricky one is having to move the ship in towards the shore only (when) high tides occur to keep it from grounding itself on the sandy bottom," Block said.

This mission is a particularly interesting one because the ship is operating as close as 1,500 feet from the shoreline, Block said.

"This is the closest to the beach I have ever worked," he said.

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Hazy sun sets over the USS Safeguard salvage ship moored near Ripsaw Range in northern Japan as a boat returns workmen to shore.

The Safeguard is expected to continue salvage operations until Air Force officials at Misawa decide most of the debris has been recovered.

Still being sought is the aircraft’s tail assembly, which contains the flight data recorder that would give vital clues regarding positions of the flight controls just before the crash.

Block said that while much of the Safeguard’s day-to-day operations involve routine training, salvage missions like this one are more infrequent.

"Unfortunately it takes a crash like this to give us an exciting (salvage) mission," Block said. "At least the pilot ejected safely."


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