Amelia Earhart 17, 1937, Earhart and her crew flew the first leg from Oakland, California to Honolulu, Hawaii. In addition to Earhart and Noonan, Harry Manning and Mantz (who was acting as Earhart's technical advisor) were on board. Due to lubrication and galling problems with the propeller hubs' variable pitch mechanisms, the aircraft needed servicing in Hawaii. Ultimately, the Electra ended up at the United States Navy's Luke Field on Ford Island in Pearl Harbor. The flight resumed three days later from Luke Field with Earhart, Noonan and Manning on board. During the takeoff run, there was an uncontrolled ground-loop, the forward
Amelia Earhart world flight started, problems with radio reception were noticed while flying across the US; Pan Am technicians may have modified the ventral antenna while the plane was in Miami. At Lae, problems with transmission quality on 6210 kHz were noticed. Once the flight took off from Lae, Lae did not receive radio messages on 6210 kHz (Earhart's daytime frequency) until four hours later (at <time datetime="1937-07-02T14:18+10:00" title="04:18Z">2:18 pm</time>); Lae's last reception was at <time datetime="1937-07-02T17:18+10:00" title="07:18Z">5:18 pm</time> and was a strong signal; Lae received nothing after that; presumably the plane switched to 3105 kHz (Earhart's nighttime frequency). "Itasca" heard Earhart