by emfinite
I think the 402 may be in use on the RS60 (east of KO2 train @ night) because 151/156 have been on the RS80 and 261/155 have been on the RS50. I'm guessing 402 is the middle unit between 271/268 on the RS60 since that is the longest of the three trains. It was on the RS50/51 last week paired with 261, but it changes weekly.