According to Bustimes:
24001: was out all day yesterday
24002: last time out was 31st December 2019 in a full service (has moved around the depot between then and today)
24003: last time out was the 12th December 2019 in a full service (has moved around the depot between then and today)
RE: Stagecoach North East: Latest News & Discussion - January 2020
Ooo Friend, Bus Friend.