Peter Kerslake says 'A visit to Newton Abbot shed and Works on 29th. Septmber, 1956 from my home in Plymouth provided the unexpected sight of our Laira shed's 4086 'Builth Castle" undergoing a very heavy overhaul in the works there. My note made at the time says'Swindon Works too full", but I didn't realise that Newton Abbot could undertake such heavy overhauls'