A321
Situational Awareness
Aircraft Equipment Problem Less Severe; Deviation - Speed All Types; Deviation / Discrepancy - Procedural Published Material / Policy
Human Factors
We were down wind on the approach to 36L (JOVEM1) @11;000 FT.  We were given a clearance to descend; I selected open descent and reached for the speed brake handle.  I inadvertently moved the flap handle from 1 to 2 (we were at approx 210 kts).  I saw the red over speed zipper move down and realized my mistake.  As I was reselecting flap 1; a warning sounded briefly.  I informed the Captain of had occurred and he entered an over-speed write-up in the maintenance log.I thought it was near impossible to confuse these two levers; I was wrong.  Making positive confirmation of exactly which control you are about to manipulate prior to movement is paramount.
A321 First Officer grabs the Flaps 1 handle while meaning to reach for the speedbrake lever while descending through 11000 FT.  Aircraft momentarily overspeeds Flaps 1.  Captain enters a flap overspeed entry in logbook.