PPRuNe Forums - View Single Post - AF 447 Thread No. 5
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Old 12th Aug 2011, 08:04
  #1925 (permalink)  
Diagnostic
 
Join Date: Aug 2011
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@vbp.net:
Originally Posted by vbp.net
According to La Tribune newspaper, the EASA is about to require the change of about 1,600 Thalès AoA sensors known to have a flaw. It seems the fabrication process might be responsible for some oil to be left unnoticed in the mechanism. With decreasing temp, the oil can slow or even block the sensor movement. This problem happens at random during manufactoring according to the article. Also, it restricts the affected Thalès AoA sensors to A320.
The EASA AD kindly found & linked by sensor_validation in his post #1765 specifically mentions A330 & A340 and not A320?! IMHO the answer we don't yet know, is whether that model of AoA sensor was installed on AF447...

Reading the comments from other contributors here, it seems unlikely that whatever was wrong with AoA sensor #1 had a material impact on the events on this flight, although yet another fault added being into the mix is obviously a worry. Or do you believe the issue with this AoA sensor #1 was significant in the events that occurred?

@3holelover: I was going to apply for a job at Thales. I'm now re-thinking that plan
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