OK, here is a more unusual photo, but it's not as bad as it looks. It's a photo I took of OAD in 1994 during pushback in IAD. Occasionally if there was an excess of fuel lying in the bottom of the combustion chamber you used to get about 3 or 4 seconds of rather scary looking flames coming out of the jet pipe. It was never a problem, but looked quite spectacular (especially at night
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Best regards
Dude