I'm assuming that retired AA pilots chose the lump-sum option for their A-plan balance, so they won't be affected. If they didn't take the lump-sum, their retirement will be trimmed no matter what age they retired. For those who have accumulated a large pension accrual but have yet to retire (say, those with 25+ years of service and who are 55+ years old), they're screwed, as their A-Plan payments will be limited to the PBGC maximums of $4,500 or less per month (less if they retire prior to 65 or choose the joint & survivor annuity).
tech: not only the UA pilots but also the US and DL pilots were hit with the double whammy of relatively small PBGC limits plus the reduction for age 60 retirement (which was forced until what, 5 years ago?).
tech: not only the UA pilots but also the US and DL pilots were hit with the double whammy of relatively small PBGC limits plus the reduction for age 60 retirement (which was forced until what, 5 years ago?).