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Level Flight Issues

Printed From: Avidyne
Category: Avidyne General
Forum Name: DFC90/DFC100 Digital Autopilot
Forum Description: Topics on the Avidyne DFC Digital Autopilots
Printed Date: 10 Dec 2018 at 3:52pm
Software Version: Web Wiz Forums 12.01 -

Topic: Level Flight Issues
Posted By: lolsen94
Subject: Level Flight Issues
Date Posted: 26 Sep 2017 at 5:13pm
During my last couple of flights, my DFC-90 was in smooth air, in level flight. I noticed on many occasions the plane would drift down slightly, the jerk back up (20-40 feet) get back to the assigned altitude. I did not do it on the next flight, but every flight after that. Has anyone else had this problem?

Posted By: Ibraham
Date Posted: 26 Sep 2017 at 5:42pm
We had a similar problem with the STEC55X (before installing the DFC-90), the shop found some blockage in the static lines. After they took care of the static system, the problem was fixed.

Posted By: DavidBunin
Date Posted: 28 Sep 2017 at 1:14pm
Sounds like a drop of water in the static lines to me.

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