🇺🇸 N516AS - Boeing 737NG 890/W - Alaska Airlines ASA7/AS7, Ronald Reagan Washington Ntl (DCA) to San Francisco (SFO) - 5.2 mi away @ 37850 ft, heading W at 468 mph. Spotted 4x before. [07:32:31 PM CDT] #A677CA #N516AS #B738 #ALASKA #ASA7 #AS7 #ADSB #ADSBbot