China Clipper flight departure site when Sikorsky S-42 "Samoan Clipper" exploded over Samoa in January, 1938. "Hawaii Clipper" disappeared westbound from Guam to Manila in July, 1938. There were unsubstantiated rumors of Japanese involvement, similar to those arising from the disappearance of Amelia Earhart a year earlier. Earhart's navigator, Fred Noonan, had been navigator aboard "China Clipper" during the initial airmail flight. Boeing 314 flying boats "Honolulu Clipper" (NC18601) and "California Clipper" (NC18602) joined the surviving Martin M-130s in 1939, and "Pacific Clipper" (NC18609) and "Anzac Clipper" (NC18611) extended service to New Zealand and Australia in 1941. "Philippine Clipper" returned to Wake when it received
China Clipper flight plan called for the "China Clipper" to fly over the San Francisco–Oakland Bay Bridge (still under construction at the time), upon take-off the pilot realized the plane would not clear the structure, and was forced to fly narrowly under instead. On November 29, the airplane reached its destination, Manila, after traveling via Honolulu, Midway Island, Wake Island, and Guam, and delivered over 110,000 pieces of mail. The crew for this flight included Edwin C. Musick as pilot and Fred Noonan as navigator The inauguration of ocean airmail service and commercial air flight across the Pacific was a significant event