AD is an Aviation Machinist Mate working on Aviation. As a former Operations Specialist (we own CIC) I had never heard of an ADW. However, I retired in 95, so it has been awhile and things have changed. Secret is all that is needed in CIC, though Crypto Secret is a higher clearance lowered for operational necessity.

Pacific Blue/White 2009 America in the TX Hill Country Not all that glitters is gold. Tolkien. Hmm Must've seen the chrome on my TA coming down the road.