Smoking engine syndrome in cold weather operations

[A&P technician]

An interesting one regarding the Beechjet 400A, if you run into dual engines smoking in cold weather ops you may want to have your mx crew check that the EPA tank check valves are not stuck/frozen open. It basically creates a mini afterburner with no flame but a lot of smoke as you dump fuel into the exhaust path. You're sure to get informed by other flight crews while taxiing or ground crews if you've got this one. FYI
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