PPRuNe Forums - View Single Post - Ash cloud a hazard for pitot tube / airspeed indicator!
Old 16th Apr 2010, 23:38
  #3 (permalink)  
glhcarl
 
Join Date: Jan 2006
Location: Georgia, USA
Posts: 454
Likes: 0
Received 0 Likes on 0 Posts
The problem is that the ash will erode the orifices in the pitot system, which could lead to erroneous readings.

Another problem caused by volcanic ash is crazing and/or delamination of cabin windows. The ash is highly acidic combined with moisture.
glhcarl is offline