"I got a full 6 years of Full-time credit for 6 years of part time work..." Hmmm, maybe that practice wasn't in the best interest of that plan, causing stresses that lead to todays shortfalls.
Anywho, I based my answer on the 2008-2013 L705 CBA. I'm unaware of when pt's went into the UPS plan.
So you really think he possibly started prior to 1976? Lot's of 40 yr pt's in L705 these days?
BTW, did you work at Jeff st?