Nelson Point, BHP Billiton's Goninan ALCo to GE rebuild CM40-8M 5639 'Corunna Downs' serial 8281-03 / 92-128 sits in the afternoon Pilbara sun at Car Dumper Two. 5639 was rebuilt from AE Goodwin built ALCo C636 locomotive 5459 in 1992. 27th of June 2004.