The remains of six people have been found after a helicopter heading to one of the most rugged and remote coastlines in Hawaii crashed at the top of a mountain on the island of Kauai, authorities said.
Officials said on Friday that there are no indications of survivors and that a search for the last person yet to be recovered would resume in the morning, depending on weather.
Those who were recovered have not been identified and their families are being notified, authorities said.
A search began for the helicopter carrying a pilot and six passengers from two families after it was reported overdue Thursday evening from a tour of Kauai's Na Pali Coast. Two passengers are believed to be minors, the Coast Guard said.
Steep terrain, low visibility, choppy seas and rain had complicated the search, the agency said.
The helicopter company, identified as Safari Helicopters, contacted the Coast Guard about 6 pm on Thursday to say the aircraft was about 30 minutes overdue, authorities said.
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A person who answered the phone at a number listed for Safari Helicopters declined to comment and hung up.
According to a preliminary report, the pilot said the tour was leaving the Waimea Canyon area, known as the 'Grand Canyon of the Pacific', about 4:40 pm, which was the last contact with the helicopter, Kauai police said.
The Eurocopter AS350 has an emergency electronic locator transmitter, but no signals were received. The locator devices are designed to activate when an aircraft crashes, Federal Aviation Administration spokesman Ian Gregor said in an email.
The FAA requires the locators to be able to withstand impact. However, it is possible for the device to stop working in an extreme crash, Gregor said.
He said the agency is looking at the company's safety record but likely won't have a full report until Monday. It's investigating along with the National Transportation Safety Board.
US Rep. Ed Case of Hawaii cited fatal accidents over the years, blaming the FAA for not taking NTSB safety improvement efforts seriously and the industry for not regulating itself. He said innocent lives are paying the price."
Kauai "has microclimates, so the weather at the airport is going to be different than up at the crash location," Sanger said. "Those microclimates can come on very quickly and dissipate quickly too, so the weather reporting is difficult."