Amelia Earhart disappearance — Navy and Coast Guard search · 221

On 2 July 1937 Earhart and Noonan took off from Lae for Howland Island, a coral speck where the United States Coast Guard cutter Itasca waited as radio and fuel ship. Itasca heard Earhart’s voice, including a last transmission at about 08:43 Howland time that she was on the line 157–337 and running on line, but the aircraft never appeared. Direction-finding and frequency mismatches meant the cutter could hear her more often than she could hear it. A Navy and Coast Guard search of the central Pacific found no confirmed wreckage.

Earhart was declared dead on 5 January 1939. The official working theory remains a loss at sea when fuel ended near Howland. Later private groups, especially TIGHAR, have argued for a landing on Gardner Island (Nikumaroro) in the Phoenix Islands. Japanese-capture stories have not produced a document trail that professional historians accept. No court or service board has identified the Electra’s wreck. The case is unsolved.

Earhart’s disappearance is a navigation and communications failure in public view: a famous pilot, a thin island, a cutter that could hear a voice and could not bring the aircraft in. Howland Island had a new airstrip built for the flight. Itasca’s job was to talk Earhart in and to take radio bearings. Earhart’s Electra used frequencies and a trailing antenna arrangement that, on the morning of 2 July, did not give the cutter a reliable two-way link. Itasca’s logs — later published and much parsed — show her reporting half-hour and then lower fuel, asking for bearings, and finally saying she was on the 157–337 sun line and running north and south.