Originally Posted by
YVR Cockroach
Thinking about the question and the pleasant surprise hint, as well as the short connecting leg to BEY tells me it might be:
4G Syrian Arab Airways, 747SP LHR-DAM
4H 727 DAM-BEY
wow, that's a combination that would not have come to my mind
4G: RB
incorrect, 74L
incorrect (although you can hold that thought), DAM
incorrect
4H: 727
incorrect -- that being said, I think the "pleasant surprise" with a DAM routing would have been a Caravelle from somewhere in Europe, but the reference OAG doesn't show any airline operating DAM-BEY