Jason1970 Posted January 21, 2022 Report Share Posted January 21, 2022 Hello . Can someone kindly explain what the DCU 1 APR FAIL IS ? And also how do we fix it please . thank you Quote Link to comment Share on other sites More sharing options...
Graeme_77 Posted January 21, 2022 Report Share Posted January 21, 2022 Usually caused by doing an APR check without the engines running. Follow the supplied expanded procedures, start the engines and then do the APR check. In this case the message will clear when you do the APR check with the engines running. Quote Link to comment Share on other sites More sharing options...
Jason1970 Posted January 21, 2022 Author Report Share Posted January 21, 2022 Thank you Quote Link to comment Share on other sites More sharing options...
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