My sister was booked on AMS-LIM (77W) on 25MAY in PC when she was downgraded a couple of days ago. (btw we just noticed this coincidentally in the account, there was no notification for it).

After calling she was rebooked to 24MAY so she could fly PC.

Now, the account shows seats 11K, 11H (but still without the "Premium Seat"-tag that shows for the return flight...)

So I guess the chances that AMS-LIM is indeed served by PH-BVU, is not just simply 1 to 15. When checking the flightradar24 history for that A/C I see several rotations to ICN, BKK, and LIM, in an open pattern. Checking the schedule, it cannot be LIM twice in a row. I guess the earliest possible point in time for a reliable equipment schedule is 48hours before departure on flightstats and/or flightradar?