600 series BTC in North side service

This morning while coming into North Station I thought I saw a train set leaving that consisted of a 600 btc. Does anyone know this to be true? I looked at the inventory page but it did not reflect this.

It's #618, towards the rear of the consist that has #1644 as the control cab car. It was berthed on track 2 at North Station this morning at 10:50am.

I saw this car on the Haverhill route last Monday evening.
John Collins

railfan101 wrote:This morning while coming into North Station I thought I saw a train set leaving that consisted of a 600 btc. Does anyone know this to be true? I looked at the inventory page but it did not reflect this.

#618 is now updated on the inventory page for north side service