Hopkins, Danny et Streeter, Tony, "The Duke's Bad Day" -LRB- Steam Railway Magazine -RRB-, p. 89 Little over into the journey the locomotive was stopped at Penrith with leaking tubes in the firebox, and removed from the train.
Hopkins, Danny and Streeter, Tony : The Dukes Bad Day -LRB- Steam Railway Magazine : 2007, 338 -RRB-