Talking of worn out RJ'S, yesterday SWISS 456 had to divert to STN because they had a flap problem on short finals to rwy 28 at LCY. Apparently the flaps were jammed at 18 degrees and would not retract or deploy! they took up the Alkin hold for a while and I was working locally and watched the drama.... all was well I assume with a slightly speedier landing than usual at Stansted