It took part in the 1948 Locomotive Trials, on 24th and 25 June 1948, running on the Great Central Main Line from Marylebone.

It was bought by the Witherslack Hall Locomotive Society and it arrived on the Great Central Railway in November 1975, having operated on the line during its BR days.

After 14 years out of service, 6990's overhaul was completed in October 2015 and was operating at the GCR.

The locomotive visited East Lancashire Railway for the 2017 and 2018 summer season.

[citation needed] In 2019, the locomotive visited the North Yorkshire Moors Railway for its annual steam gala on Friday 27 September to Sunday 29 September.