heliports in San Francisco and Oakland, to a new heliport near the Berkeley Marina and to Oakland Airport (OAK). In its timetable, SFO Helicopter Airlines, which was based at the airport, described its rotorcraft as "modern, jet turbine powered Sikorsky S-62 ten passenger amphibious helicopters". By 1962 Delta Air Lines was flying Convair 880s to SFO on one its first international jet services, San Francisco – Dallas Love Field – New Orleans – Montego Bay, Jamaica – Caracas, Venezuela. Also in 1962, National Airlines began flying Douglas DC-8s San Francisco – Houston Hobby Airport – New Orleans – Miami. Service in California By 1960 all Pacific Southwest Airlines (PSA) flights out of SFO were operated with Lockheed L-188 Electras nonstop to Los Angeles (LAX) and Burbank (BUR, now Bob Hope Airport) with some flights continuing to San Diego. In summer 1962 PSA had 14 departures a day Monday through Thursday to southern California, 21 departures on Friday and 22 on Sunday. In 1965 PSA was operating new Boeing 727-100s which were joined in 1967 by Boeing 727-200s and McDonnell Douglas DC-9-30s. In 1974 PSA was flying two wide body Lockheed L-1011 TriStars. After the Airline Deregulation Act of 1978, PSA expanded outside of California. In 1967 another intrastate airline joined PSA at SFO: Air California, flying Lockheed L-188 Electras nonstop to Orange County Airport (SNA, now John Wayne Airport). Like PSA, Air California (later renamed AirCal) eventually became an all-jet airline and expanded outside of California. AirCal was merged into American Airlines while PSA was merged into USAir (later renamed US Airways which in turn eventually merged with American Airlines). Earthquake and planned Bay fill expansion The airport closed following the Loma Prieta earthquake on October 17, 1989, reopening the following morning. Minor damage to the runways was quickly repaired. In 1989, a master plan and Environmental Impact Report were prepared to guide development over the next two decades. During the boom of the 1990s and the dot-com boom SFO became the sixth busiest airport in the world, but since 2001, when the boom ended, SFO has fallen out of the top 20. United Express turboprops were scheduled 60 minutes apart to the shuttle connecting passengers between SFO and nearby San Jose International Airport during the boom era. United Groundlink supplemented this service with alternate 60-minute frequencies. A $2.4 billion International Terminal Complex opened in December 2000, replacing Terminal 2