PPRuNe Forums - View Single Post - BA 777 on fire in Las Vegas
View Single Post
Old 12th Sep 2015, 13:10
  #399 (permalink)  
Join Date: Nov 2006
Location: Scotland
Posts: 53
If it is missing it means it was irrelevant, namely design wasn't in question rather perhaps the flaw in manufacturing of random nature.
If the problem is a manufacturing flaw in a small number of HP turbofans, why does the AD require repetitive inspections, ad infinitum. Surely, the replacement of any components found to be defective would suffice. The FAA, perhaps, believes the problem could develop over time in any of these HP turbofans, hence their requirement for repeated EFI/ECI scans.

I agree that nothing man-made is ever 100% reliable, but vital components should strive for a MTBF well in excess of their expected lifecycle.
Avionista is offline