acbus1
Howdy. I cannot recall a single entry (here) that referenced a "defect" in the disc itself. Failure, yes, but not at its own behest. DevX suggested a fire in the location near the disc' mount on the shaft, hot enough to cause damage sufficient to precipitate the loss of IP. The AD (both of them) reference Oil Supply and Scavenge problems, which needed closely scheduled inspections. So is your 'relief' (lack of panic?) a result of the exoneration of a problem not entertained by the Authority?
re: disc. The actual metallic composition of the disc would be interesting. It was a surprise to me that some here hold Titanium as 'weak' in the face of fire (a relative thing to be sure). The IP doesn't normally get exposed to fire. If this disc is of insufficient design to bear an oil fire, the question becomes, should it be of other construction? My opinion is no. Prevent the fire, solve the problem?
cheers, bear