68015, Ruston "Scaz" & 68012, Princes Risborough, 8Z99, 12th March 2016
A rare move indeed! Chiltern's 68015 and 68012 "sandwiched" Ruston Shunter "Scaz" (now with nameplates removed) working as 8Z99 - maximum speed 15mph - 00:35 from Wembley LMD to Aylesbury, with many scheduled stops to check bearings etc. on the shunter. It arrived at Princes Risborough some 67 minutes early at 02:52 but the loco was rather hot by that stage and the crew rather worried about continuing in case the loco seized up on the branch to Aylesbury. Eventually, the convoy departed at 03:29½, still 39 minutes early but took until 04:52½ to reach Aylesbury, 5 minutes late. 03:13, Saturday 12th March 2016. Digital Image No. IGMP17339.