Amelia Earhart disappearance (1937): A second departure

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, Itasca and the 157–337 line 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.

A sun line is a band, not a point. If Howland was missed, the same line also runs toward the Phoenix Islands. That geometry is why later researchers could argue both a ditching near Howland and a continued flight southeast. It is not, by itself, a wreck site. Noonan’s celestial navigation was the intended fix; the radio was the intended confirmation. Both failed in public.