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Old 18th January 2017 | 18:14
  #15 (permalink)  
KayPam
 
Joined: Dec 2015
Posts: 507
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From: France
Originally Posted by Kerosine
A319, cruising at FL370, smooth conditions, ALT CRZ (and had been for more than 2 minutes, thus "soft altitude" hold), same problem both APs.
        Very noticeable and uncomfortable for everyone on board. We used an manual thrust setting which seemed to improve the situation.

        One other very strange item: in the following video look at the V/S versus the actual change of altitude on the tape (visible at 18 seconds and more clearly at the 1 minute mark). Related?

        https://www.youtube.com/watch?v=9hk--9-fTlI

        Very strange! Any ideas?
        Your best option in that sort of case is to transfer it to Airbus who will decode the DFDR/QAR/DAR data.
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