Licence
Sorry to butt in.
CC are licensed to work on aircraft after undergoing the required training. (verb - permitted or allowed)
As such they have licence to do so.(noun - figurative - permission)
What they don't possess is a piece of paper that says e.g. 'Crew Operating Licence for Fokker Friendship' on it.(noun - tangible - self-explanatory)
Hope that helps.
PS a private messager even more pedantic than I points out that training and attestation to it is the only requirement by law for CC to operate. So, CC definitely never possess a Licence as such, as opposed to pilots who are required to.
Hope that helps more.
Last edited by mrpony; 7th Mar 2011 at 12:04.