May 4, 20197 yr For the past several weeks I have been experiencing this cloud effect coming out of the fuel dump valve. This only happens with the 747-400BCF and I have contacted PMDG about the issue but they are saying its an issue with the immersion pack. Reinstalling the PMDG 747 doesn't fix it, does anyone have any suggestions? https://imgur.com/yumxi6r
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