Home Business Britain's SSP posts higher revenue, flags hit from Boeing 737 MAX grounding Business Britain's SSP posts higher revenue, flags hit from Boeing 737 MAX grounding By Genpie - July 19, 2019 122 0 Facebook Twitter Google+ Pinterest WhatsApp British travel-food company SSP Group Plc posted higher quarterly revenue on Friday, but said some of its operations in North America were hit by flight cancellations following the grounding of Boeing’s 737 MAX aircraft.