Why does this airport have four square ticks?

November, 2, 2019 by

Seen on here, from BoldMethod, “Airports with services are marked with 4 ticks around them. The ticks indicate that fuel is available and the airport is tended during normal working hours.”

Kyle Boas is the Founder of the IFATC Education Group. He is an IFATC Supervisor and Infinite Flight Appeals team member. — More