Originally Posted by Topslide6
I must admit, my initial response on hearing about this was that it was probably to do with FADEC or the 777 equivilent. However, on reflection I would have said it's highly unlikely, but still possible. With the certification process these aircraft go through, and how many commercial flights the 777 has done to date, the laws of probability would dictate that it ought to have manifested itself by now.
I have stayed out of this so far, but this supposition must be corrected.
The certification process and 3.6 million flight hours says virtually nothing about manifestation of SW faults. For an example, consider that the certification process and a large percentage of those flight hours failed to discover a significant bug in the flight control SW that manifested itself first in August 2005 out of Perth.
PBL