The kink is normal.
Following further inspection if you look a the trailing edge there is a difference / change in thickness of the trailing edge. From approx 2.5mm - 2mm which appears as a kink.
RHC response
Without actually examining the blade we cannot confirm airworthiness. Having said that, there are some blade characteristics you should be aware of:
At R.S. 64.00 + or - 0.5 two pieces of honeycomb adjoin, maximum allowable external bulge at this location is 0.020inch.
Also at 64.00 one 0.6 inch wide trailing edge internal (Between blade skins) doubler ends
At R.S. 61.90 + or - 1.00 there is a thread rap around the internal trailing edge doublers which typically produces a barely detectable 0.6 inch chordwise bulge at the trailing edge.
An allowable "washboard effect" consisting of chordwise depressions of 0.010 inch maximum depth may be found along the entire span approx every 1.5 inches. Such depressions may extend chordwise from the aft face of the leading edge D spar to just forward of the trailing edge bond joint