Originally Posted by
Dave Therhino
The recent 777 event, Southwest 1380, and Southwest 3472 all were not uncontained failures as defined by industry and the regulatory authorities.
Yes, the generally accepted definition is contained in
FAA Advisory Circular AC 33-5: Turbine Engine Rotor Blade Containment/Durability, dating from 1990:
"Contained means that no fragments are released through the engine structure, but fragments may be ejected out the engine air inlet or exhaust."
(note the specific reference to blades)
Recommended reading for all.
