A man who claims his body was contaminated with depleted uranium when he worked at a Somerset defence company is to take his case to the High Court.
Mr David began working at the company in 1985
Richard David used to work at Normal Air Garret Ltd - now known as Honeywell - in Yeovil, and says he developed a cough within weeks of starting work.
He has now been diagnosed with a terminal lung condition.
Honeywell says it has never used depleted uranium either in its products or on-site.
Mr David began working at the company in 1985 making aerospace parts, but had to leave because of poor health 10 years later.
He is believed to be the first civilian to sue for such damages and the case begins in the High Court on Monday.