Unit Help -- Please

Hi All,

I recently came across information on an uncle who served during WWII.I looked up his info in the library, but am having trouble determining in what capacity he served and where.
This is what I have:
Entered Active Duty - Army Air Force 23 Oct 42.
Awarded - Good Conduct Medal, American Campaign Medal, WWII Victory Medal.
Honorable Discharge
SGT SQDN C 3036 AAF BU 28 Feb 46.
This last part is my problem.
I have searched 3036 every way from Sunday and the most I can come up with are men w/ same wording on their markers, buried in various cemeteries.

Any help most appreciated!
Lisa
SC