50396 was delivered to 6G in January 1958, paired with 56151.

It was withdrawn in June 1970. It went into departmental use as 975089 for use by the RTC paired with 975090.

The set was labelled Laboratory Coach No.5 set was used as a track recording vehicle. It was named 'Trim'.

	RDB975089 & RDB975090 are seen at Lawrence Hill in 1979. Robert Tarling
	At Derby on 29/3/88. Dennis Taylor www.dennistaylor.fotopic.net

It was replaced by a research owned Class 150 unit. The Class 103 left Derby on the 12th Feb '91 for Mayer Parry at Snailwell. The 9X14 working also included Class 116 53063/119 and Class 104 53451/529. It was cut up there the same month.

975089 with its partner 975090 (ex-DTC 56162), at Avenue, Chesterfield. Paul Moxon.