I assume that you have seen these on the web; for info.
https://www.jetphotos.com/registration/G-SCHH
https://abpic.co.uk/pictures/registration/G-SCHH
https://www.airliners.net/photo/Dan-...46-100/1212906 In the snow
Newcastle ?
G-SCHH with RAF roundels, thats one for the logbook.
Also a vague recollection that this aircraft, in Dan Air colours, conducted waterslpash trials at Cranfield