@SFOMuseum Twitter Posts This is SFO Museum's archive of the @SFOMuseum Twitter account.
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In 1986, USAir, driven by other mergers taking place in the aviation industry, (Western airlines was purchased by Delta Air Lines and AirCal was bought by American Airlines) acquired PSA. PSA's last flight was on April 8, 1988. #DefunctThursday #PacificSouthwestAirlines #AvGeek . This tweet was posted on October 21, 2022.