Active waypoint guidance disappears on MFD

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   Recently our 2007 Cirrus SR20 started having an intermittent problem displaying the magenta course guidance to the next waypoint. Typically flying an approach with dual IFD 440s (10.3) and a DFC90 on the EX500 MFD display shows our magenta line to the next waypoint, the IAF, with the procedure turn depicted. Intermittently that magenta segment disappears for 2-5 seconds and then reappears. The IFD 440 accurately and continuously displays the info correctly and the A/P follows the IFD correctly. MFD just came back from repair, IFDs were swapped but problem persists.  Is this a 10.3 problem, a course guidance from IFD to MFD problem, or a wiring problem?  Anyone seen this before? The active waypoint block in the upper right corner of the MFD also looses the waypoint data but not always.  Thanks for any insight…

Edited by FlyBill99 - 06 Jan 2023 at 6:24pm

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FlyBill99 Members Profile Send Private Message Find Members Posts Add to Buddy List Newbie Joined: 07 Aug 2020 Location: Pittsburgh Status: Offline Points: 7	Post Options Post Reply Quote FlyBill99 Report Post Thanks(0) Quote Reply Topic: Active waypoint guidance disappears on MFD Posted: 06 Jan 2023 at 6:18pm
	Recently our 2007 Cirrus SR20 started having an intermittent problem displaying the magenta course guidance to the next waypoint. Typically flying an approach with dual IFD 440s (10.3) and a DFC90 on the EX500 MFD display shows our magenta line to the next waypoint, the IAF, with the procedure turn depicted. Intermittently that magenta segment disappears for 2-5 seconds and then reappears. The IFD 440 accurately and continuously displays the info correctly and the A/P follows the IFD correctly. MFD just came back from repair, IFDs were swapped but problem persists. Is this a 10.3 problem, a course guidance from IFD to MFD problem, or a wiring problem? Anyone seen this before? The active waypoint block in the upper right corner of the MFD also looses the waypoint data but not always. Thanks for any insight… Edited by FlyBill99 - 06 Jan 2023 at 6:24pm