I thought EI-REP was the youngest of the ATR's in the fleet.
Does anyone know the reason for it being withdrawn from service?
Yup, it was the youngest; and yes it was sold to help fund the new -600's.
The new -600 (EI-FAS) should be delivered on the 23rd Apr, and put into service on the 25th. Glasgow is the first route it will be operating i think.