Tenders and Turntables - S1-E15
Visible crew/equipment: In the close-up of James moving on the turntable, the reflection of a crew member can be seen in his smoke box.
Tenders and Turntables - S1-E15
Visible crew/equipment: In the close-up of James spinning on the turntable a crew member's face is reflected in his paintwork.
Answer: Breakdown trains help the engines back on track.