Habib Posted August 3 Share Posted August 3 Why oil cooler flap is closed during clean up checks after an in flight engine shutdown? Quote Link to comment Share on other sites More sharing options...
NATOPS1 Posted August 19 Share Posted August 19 Closed keeps cold air out and prevents cold soaking the oil inside the cooler. Quote Link to comment Share on other sites More sharing options...
victorp1 Posted September 21 Share Posted September 21 When I flew on the C-121J we closed the cowl flaps and oil cooler flap to reduce drag. Quote Link to comment Share on other sites More sharing options...
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