Federal report details fatal Kauai helicopter crash in 2019

FILE - An area near the Na Pali Coast on the island of Kauai in Hawaii is shown as seen from the air on Dec. 17, 2019. The National Transportation Safety Board released an investigation report Wednesday, Dec. 15, 2021 on the crash of a tour helicopter on Dec. 26, 2019 in the area that killed seven people, but the report did not detail a cause for the crash. (AP Photo/Maryclaire Dale, File)

FILE - In this photo released by the U.S. Coast Guard, the Cutter William Hart moves toward the Na Pali Coast on the Hawaiian island of Kauai on Dec. 27, 2019, the day after a tour helicopter crashed. All seven people on board were killed in the crash and the National Transportation Safety Board released an investigation report Wednesday, Dec. 15, 2021, but did not detail a cause for the crash. (Lt. j.g. Daniel Winter/U.S. Coast Guard via AP, File)

In this undated photo provided by the National Transportation Safety Board on Wednesday, Dec. 15, 2021, the scene where a tour helicopter crashed near the Na Pali Coast on the island of Kauai in Hawaii on Dec. 26, 2019, killing all seven people on board, is shown. The NTSB released an investigation report Wednesday on the crash, but the report did not detail a cause. (National Transportation Safety Board/via AP)

FILE - An area near the Na Pali Coast on the island of Kauai in Hawaii is shown as seen from the air on Dec. 17, 2019. The National Transportation Safety Board released an investigation report Wednesday, Dec. 15, 2021 on the crash of a tour helicopter on Dec. 26, 2019 in the area that killed seven people, but the report did not detail a cause for the crash. (AP Photo/Maryclaire Dale, File)

HONOLULU — The National Transportation Safety Board released an investigation report Wednesday on a fatal Kauai tour helicopter crash that killed seven people.