Intruder,
You are indeed quite correct.
The Lockheed L1011-500 series had active ailerons, which worked to relieve gust loads on the wing.
If, for any reason the system was unserviceable, the aircraft could still be dispatched under MEL,
but with a rather severe weight penalty.
The system on the -500 was very reliable and worked
good. 
Ah...Lockheed.
Ask the folks who operated one...delightful.
