Why did FlightStats mark today's flight AS159 as departed from SEA and diverted to SEA?

Why did FlightStats mark today's flight AS159 as departed from SEA and diverted to SEA? - High-Angle Photo of City Buildings

I see that FlightStats marked today's flight AS159, as departed from SEA's gate at 07:15 PT and diverted to SEA, where it arrived at 07:38 (mirror):

enter image description here

A second flight AS159 departed from SEA's gate at 07:15 and was successful in reaching its scheduled destination (SFO) but was 1h07 late (mirror):

enter image description here

Why was the first flight marked as diverted back to SEA? E.g., does that mean that passengers had to board twice?






Pictures about "Why did FlightStats mark today's flight AS159 as departed from SEA and diverted to SEA?"

Why did FlightStats mark today's flight AS159 as departed from SEA and diverted to SEA? - From above of seagulls soaring over blue surface of sea near fishing ship
Why did FlightStats mark today's flight AS159 as departed from SEA and diverted to SEA? - Drone view of boat and vessel moored on rippling sea water during traditional net fishing
Why did FlightStats mark today's flight AS159 as departed from SEA and diverted to SEA? - Aged motor boat moored on sea near dock





Latest Saudi News Today Urdu Hindi|Saudi Airline New luggage Transport from Residence|Saudi Khabrain




Sources: Stack Exchange - This article follows the attribution requirements of Stack Exchange and is licensed under CC BY-SA 3.0.

Images: Matheus Bertelli, Hatice Yardim, Pok Rie, Erik Mclean