Used to describe a location where operations rarely go according to plan.
The Simpsons - Springfield Nuclear Power Plant
Homer Simpson is head of Sector 7-G, the plant safety division.
The hotel in 'Faulty Towers' could be discribed as Sector 7-G
My house could be discribed as Sector 7-G, as cleaning operations never get done when they should.
The company i work for could be discribed as Sector 7-G etc.
"I work in Sector 7-G of *company name*"