Mode7:
Old Aero Guy. Where did you get this data from?
"Old Aero Guy" is absolutely correct and you can find this in
FAA AC 120-42A
The IFSD rate for a specific aircraft/engine combination is an "industry" rate as well as an "individual operator" rate... and any IFSD… see definition… will count as an event… even if you “inadvertently” shut the engine down. ETOPS is not just an aircraft/engine reliability program… but the Airline’s operational philosophy as well. Exceeding the IFSD “alert" level… say 0.02 for 180 minutes ETOPS… does not necessarily mean that you loose your ETOPS approval either, but you have to come up with a good “game plan” and convince the “authorities” you know what you are doing.
All you guys who “question” ETOPS operation should take time and read through this AC and try to understand all that is involved. I doubt any carrier will launch off across the North Pole without first study “every” available aspect of this operation… and if they don’t… well... then they are likely to “jeopardize” safety in many other areas as well…
Thought and comments…?
Dag