165029 passes through Sonning cutting on 26 March 1992 with an Oxford to Paddington crew training run. Two out and back training runs had started a week earlier, and would continue running even after the first passenger carrying turn started on 13 April. 165029 had only been delivered from the BREL works at York a few weeks previously and was the first of the three car Class 165/0s that were temporarily lent to the Thames division for use on services out of Paddington, pending delivery of the Class 165/1s. When eventually enough 165/1s became available, 165029 along with the other 165/0s moved to their intended Chiltern Line duties, where they have been ever since.