... plus approx 110 retirements a year for the next five or so years.
Is there 60 or so 737 crew approaching 60 each year? The reason I ask is that the figures I have is for about 45 crew per annum to be reaching the 60 mark of which about 30 or so each year are captains. Given that they can bid back to other aircraft and that the F/Os can continue on anyway, I'm not sure that 110 is an accurate number. I'd bet on 40-45 but even that may prove optimistic.
Of course there are always rumours about the age going up to 65 but that's like 777s in QF. I'll believe it when I see it!