From today's ANN.
Perhaps the term "Aileron fluttering to the ground" is accurate.
Experience And Cool Save Airshow Performer
Wed, 06 Jul '11
John Klatt Lands Safely After Shedding Aileron During Snap Rolls
Spectators at the Battle Creek Balloon Festival Airshow in Michigan got a
disconcerting look Sunday into the risks faced by aerobatic performers. John
Klatt's Panzl S330 lost its left aileron during a series of snap rolls, but he
was able to level out even as the control surface fluttered to the
ground.