This just begs more questions than it answers.
Indeed.
As confirmed by Hilife...
note that the design scheduled number of times that the oil filter bowl should have been removed during the life* of the MGB was just five, but Cougar was averaging around 220 hours instead of the anticipated 500 to 1000 hours.
* I assume you mean the TBO
...the expected MTBUR of the filters was massively optimistic meaning the comments on the success of titanium on other fleets are irrelevant.
Any news on the new MGB being designed?