Class 20s Nos. 20227 and 20189 worked light engines as 0Z20, 13:00 from West Ruislip LUL Depot (where they are normally based) to Bescot, on Monday 20th June 2011. The pair are seen passing through Haddenham & Thame Parkway, running on time at 13:50. They were due to recess overnight at Bescot before continuing to Butterley, where 20227 was due to be dropped off, 20189 proceeding to Barrow Hill for attention to its bogies. The headcode 746 is an LUL code which 20189 has carried during its recent duties accompanying Met Electric No. 12 "Sarah Siddons". Digital Image No. GMPI9497.