There was a short period when they were issued with such
That period was from 1 July 1999 to 31 Dec 2000. If the licence is lifetime you only need training as required and a Prof Check to revalidate it. The Skill test is never taken again. The FRTOL may have been issued for life, or it may have had a 10 year validity in which case it will have to be reissued. An ELP will be required which requires an SRG 1199 from an Examiner, this has become a performance now that it is online, instead of taking 5 minutes the last one took me over 2 hours!