Vilas,
I resurrected the thread because I was looking for another topic and found that this one has and interesting one. Triple IRS failure is interesting. Very improbable scenario but not impossible. And by discussing this type of troubles we get to know and understand the aircraft systems better. Had I opened a new thread on it, I am sure someone would have posted a link to another thread that relates to the topic. So I decided to use the "search" function. I thank you for your explanation.
Max Angle,
I guess is a new record.
Did I earn a medal?