12092 was part of the first batch of production Mark 3A coaches ordered by BR to lot number 30877 in November 1973 and constructed at Derby Litchurch Lane works during 1975/6, coming off the production line at the same time as the first production HST trailers. Built for West Coast main line services, 12092 spent nearly thirty years operating on the route for British Rail and Virgin Trains until being displaced by new Pendolinos in March 2004.
After West Coast service 12092 moved to ScotRail for 16 months from May 2004 until September 2005 to operate on the Edinburgh to North Berwick services. Displaced from Scotland by EMUs, 12092 initially spent a very short period on hire to Cotswold Rail before being stored. Following the award of a new East Coast franchise, in December 2007 12092 was selected to be part of a fleet leased to National Express to provide extra stock for the route.
Following the abandonment of that plan 12092 moved on to Norwich Crown Point depot where it was re-liveried in to National Express East Anglia livery and prepared for use on the London Liverpool St. to Norwich corridor. Once again, though, it never entered service and was instead used as a source of spares, eventually being moved into storage at Long Marston.
Purchased from Porterbrook Leasing on 1st January 2015, 12092 was moved from Long Marston to Ruddington on the Great Central Railway (Nottingham) on 28th March 2015 and following repairs, safety checks and a heavy clean re-entered service on 24th May 2015. The interior is in good condition and the seat covers have all been removed and deep cleaned.
Substantial repair work was required before the electrical systems could be re-commissioned, including a replacement motor-alternator.
Following a short period of use carrying the washed out Anglia livery vinyls, 12092 left Ruddington on 11th December 2015 for repainting at Wabtec’s Kilmarnock workshops. The livery this vehicle now carries is as close an approximation to the original prototype Mark 3 livery as modern railway group standards allow.