Old 29th Dec 2018, 12:34
  #43 (permalink)  
DaveReidUK
 
Join Date: Jan 2008
Location: Reading, UK
Posts: 10,301
Originally Posted by wiedehopf View Post
The problem at first was an intermittent AoA signal. That meant no airspeed and altitude for the captain sometimes because AoA is included in the calculation.
After the change of the AoA sensor in Denpasar the signal was not intermittent but offset by 20 degrees on the previous and the accident flight.
Are you sure about that ?

I haven't seen any FDR traces for the two flights where problems were reported that occurred prior to the AoA sensor replacement. Nor AFAIK has there been any report on the condition of the removed sensor.

IMHO it's entirely possible that neither sensor was faulty and both were correctly installed, i.e. the fault was farther downstream and replacing the sensor made no difference.
DaveReidUK is online now