New planes go into regular service, 1952
Supplementary material reads: "News Bureau. United Air Lines. Bill O'Hern. MAdison 6-6311. New airliners begin schedules from Los Angeles: Los Angeles International Airport marked another 'first' today (Sunday) when United Air Lines began its first schedules with the nation's newest commercial airliner, the Mainliner Convair. Airport Manager Woodruff De Silva dispatched the first flight, a United trip to San Diego. The airline plans to use the new 44-passenger aircraft on flights to intermediate cities on its Pacific Coast and transcontinental routes, replacing the smaller and slower DC-3".