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Old 23rd Feb 2015, 15:02
  #56 (permalink)  
Join Date: Apr 1999
Location: Manchester, UK
Posts: 1,889
Yes, in a word. Types which have flagged up prominently are BAe146, 757 and A 340, and even amongst those aircraft, certain sub-types of engine are worse than others.

Re. testing, it's entirely possible a brand new engine might deliver a very low concentration of toxins under test conditions and perform much less well after thousand hours wear on the seals.
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