Sadly from experience, HR will blindly screen them out and speil the usual "overqualified" excuse to not progress. That they regularly do and get away with.
Had situation exactly like that once and I bypassed HR straight to manager who lambasted HR, got interview and the job, still got shafted by HR who messed up salary, lied about rise and generally made my life hell with pettiness and bullying for want of another way of putting it. That is along with one person in HR taking my side and telling me what her manager was upto and next thing, that person was gone. So yeah - HR causes many of these ageist issues when it comes to the situation you outline.
Had situation exactly like that once and I bypassed HR straight to manager who lambasted HR, got interview and the job, still got shafted by HR who messed up salary, lied about rise and generally made my life hell with pettiness and bullying for want of another way of putting it. That is along with one person in HR taking my side and telling me what her manager was upto and next thing, that person was gone. So yeah - HR causes many of these ageist issues when it comes to the situation you outline.