"..they left the A/C.."? Air conditioning? Good one. There are never enough undefined abbreviations and acronyms for us, the great unwashed, to get our collective heads around. Quite unusual and not in keeping for PPRune posters.
A/C AirCraft Has been for years.
AC Air Conditioning. Quite a new one for me being in the temperate region we don't generally use it.
Simples.
