Just for interest
EI-CJH was G-BGYJ with Britannia
EI-CJE was G-BJCU
EI-CJK was G-BKHE
EI-CJC was G-BJCV
EI-CJG was G-BGYK
Some of which still have BY seatbelts !
Don’t know the reg, but the last BY 732 I flew on in ’86 was nicknamed “Sir Frances Chichester”, I think it was one of the above??? Maybe BKHE???