an A-grade Hillside overhaul in 1967, with the firebox converted from oil to coal burning, but with all the oil firing fittings left in place, making easier, J1236 restoration and reconversion to oil burning in 1991-2001 for rail excursions, the boiler of JA 1278 withdrawn in March 1968 and installed that year in a C-grade overhaul of JA 1252 in Dunedin. Only three of the North British JA class managed to reach the end of North Island steam in 1968, JA 1275 being one of them. After withdrawal and removal of all useful parts, the North British JAs were onsold to Sims Pacific Metal Industries and towed as required to Sims Otahuhu scrapyard, adjacent to the Otahuhu Workshops, for scrapping. The only locomotive to avoid this fate, JA 1275, was purchased by Les Hostick in 1968 and transported to the NZR&LS Waikato Branch's Te Awamutu Railway Museum along with BB 144 for static display. Preservation Six of the Hillside JAs survived to be preserved; by contrast only one North British JA remains. Additionally, two preserved J class locomotives have North British JA tenders. Hillside JAs JA 1240 "Jessica" was preserved by Blenheim man Peter Coleman, and was stored serviceable at his Blenheim property. In 1988 after his death, JA 1240 was purchased by Ian Welch, and in 1990 travelled to the Mainline Steam Heritage Trust's Parnell depot. This locomotive's restoration for mainline use (as a coal burner) has been completed, and is based in Christchurch. It has been named after one of owner Ian Welch's granddaughters. JA 1250 "Diana" was preserved by the Railway Enthusiasts Society for use on their Steam Safari train in 1972. After this series of excursions, it was purchased by Phil Goldman, who named the engine after his wife, Diana. JA 1250 was restored by the Glenbrook Vintage Railway for use on their railway. It was also used for scenes in the 1983 feature film Merry Christmas, Mr. Lawrence. In 1985, JA 1250 was one of two engines selected to be used on the first mainline steam-hauled trip since the end of steam. After this JA 1250 ventured around the country, being a notable attendee of the 1988 Rail 125 celebrations. Between 1994 and 1998 JA 1250 underwent a substantial overhaul and returned to mainline and GVR service. From 2006 JA 1250's mainline certification lapsed, and it was confined to the Glenbrook Vintage Railway. In 2011