kevinh 6 Posted May 22, 2018 Share Posted May 22, 2018 Before starting engines, when you switch the boost pumps on EICAS still shows LO PRESS on both sides and the boost pump synoptics are amber, even though pressure is shown in green. LO PRESS should only show if neither boost pump pressure nor ejector pressure is available. The FCOM says the EICAS boost pump icon colour should be: Pump Off - White Pump On - Green Failure - Amber (e.g. pump should be running but isn't producing pressure). Currently the EICAS shows the colour as follows Pump Off - Amber (with engine not running) or White (with engine running) Pump On - Amber (Failure condition is not simulated) Pump status should show the pump operation and not be conditional on engine status. According to the CRJ-700/900 FCOM, the boost pumps operate together in most situations, both pumps can feed either engine. If either pump switch is armed and either engine is not running then both boost pumps will run. In the sim, before engine start both pumps run with either switch in the arm position, as per the FCOM. After the first engine start the other engine's boost pump switches off, whether the pump switch is in arm or not. The boost pump switch shows an amber inop warning. In the aircraft both pumps would still be running until both engines are started. Link to comment Share on other sites More sharing options...
kevinh 6 Posted July 11, 2018 Author Share Posted July 11, 2018 A reply from Aerosoft would be good. Link to comment Share on other sites More sharing options...
Developer Hans Hartmann 3694 Posted July 15, 2018 Developer Share Posted July 15, 2018 The Fuel Pump Logic has been reworked for SP1. Link to comment Share on other sites More sharing options...
kevinh 6 Posted July 18, 2018 Author Share Posted July 18, 2018 Thanks for the update, Hans. Looking forward to the release of the SP. Link to comment Share on other sites More sharing options...
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