Only one 'Titanium Ring' on the 'Tristar-asaurus' Rex that I know of.....
Would that be the "inlet adapter cone" referenced earlier, which is made of titanium and is generally circular...or, another one?
For reference, these are available ex-VCV from scrapped -500 aircraft, however....they ain't cheap, presently.
The L1011 is a very reliable aircraft, IF operated and maintained by folks who know how.
In the last five years, I have had
nil flights delayed for other than traffic/ATC reasons....except for two deflated tires, that was caused by FOD...bits from an Airboos
, as it turned out.