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Search for Army helicopter crew employs underwater equipment


    A Response Boat-Medium boat crew from Coast Guard Station Honolulu conducted a search for five crew members aboard a downed Army UH-60 Black Hawk helicopter approximately 2 miles west of Kaena Point on Wednesday. A multiagency team scoured the ocean off Hawaii on Wednesday.

Army officials have spent days sifting through chunks of Black Hawk helicopter debris in turbulent Pacific waters off Hawaii but have yet to see any signs of life in their search for five soldiers missing since the aircraft crashed during nighttime training Tuesday.

The Coast Guard said Friday it is searching up to 50 miles off Kaena Point, where the Black Hawk helicopter crashed west of Oahu.

Firefighters found and collected what appeared to be pieces of helicopter fuselage and a helmet earlier in the week. The Coast Guard said responders continue to find debris, but didn’t have specifics on what kind.

The Navy brought remotely operated underwater vehicles and sonar to help. On Friday it searched waters about 1 mile off the coast, said Lt. Col. Curtis Kellogg, a spokesman for the Army’s 25th Infantry Division.

Shifting waters and swift currents spread debris from 2 miles offshore Tuesday night to an expanded search area of at least 50 miles Thursday.

The ocean floor drops quickly off Oahu and varies throughout the search area. It is more than 1,000 feet deep at the center of a safety zone established by the Coast Guard for the search.

The safety zone extends from a 5-mile radius around the helicopter’s last known location. The Coast Guard set it up because it’s likely to have a higher concentration of debris and be where most of the search aircraft and vessels are operating.

It’s not allowing civilians to enter the area.

A Coast Guard HC-130 Hercules plane helping with the search was using radar that is designed to search the surface of the ocean, said spokeswoman Chief Petty Officer Sara Muir. An MH-65 Dolphin helicopter was using infrared technology, she said.

Asked whether sharks would be a concern, Muir said there were marine predators in the area.

“That is expected and perfectly normal for this region,” she said.

Master Sgt. Peter Mayes, a spokesman for the 25th Infantry Division, said all five crew members had life vests and an air bottle for underwater breathing. There was no life raft on board, however. That’s because operating procedure calls for rafts only when non-crew member soldiers or people without life vests are on board.

All Black Hawk crews undergo underwater crash and survival training before they come to Hawaii, Mayes said. Soldiers simulate being on board a helicopter that’s crashed into the water and learn how to free themselves.

Mario Vittone, a retired Coast Guardsman and expert on sea survival, said the length of the search will depend on the likelihood of finding someone alive.

In colder areas where ocean temperatures are below 60 degrees, a search would be over in 24 to 36 hours, even if no one was found. But in Hawaii, where ocean temperatures are often over 75 degrees and air temperatures are also warmer, people can survive longer and searches will last longer, Vittone said.

How long people survive depends on their age, weight and health in addition to the weather.

The two Black Hawk crews were conducting training between Kaena Point and Dil­lingham Airfield when communications were lost. The two helicopters are part of the 25th Combat Aviation Brigade, based in Hawaii.

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