BLEEP BLOOP: I just saw an aircraft with callsign #SWA3352 (ICAO code #AA7A61) flying at 315 kt at altitude 8750 feet MSL at coordinates 34.2449,-118.4722.

They must have had a 50 knots tail wind.

https://globe.adsbexchange.com/?icao=aa7a61
https://www.openstreetmap.org/?mlat=34.2449&mlon=-118.4722#map=15/34.2449/-118.4722