Interesting comment about aerosols. Try lubricating piano hinges with a traditional Fluid 3 can... You're wasting your time, really; the oil rarely penetrates, especially on re-painted control surfaces. Piper have the right idea by using nylon-lined self-lubricating piano hinge segments on some aircraft.
Speaking of control restrictions, I remember the rush to supply an overhauled Vickers Merchantman (Vanguard, more or less) nose gear upper housing that had cracked after a 'firm' landing due to the elevators locking up in the cruise after improper de-icing and the water freezing in the curtain gap. I think it would have been in the mid-80s and the aircraft was loaded with 14 or so tons of newspapers.
Maybe someone here has more knowledge of the incident. It was an Air Bridge Carriers aircraft and I think the destination airfield was Luton.