The 'Conclusion's' of the AAIB report into the 748 're-land/abort' at Stansted in 1998 suggest all may not be well, nor lessons learned?
Regarding the RR turbine engines, Conclusions, 3 (b) (22):
'Effective action to address the suspected causes of the previous HP turbine disc failures and prevent recurrence had not been taken'
A different engine and problem, but....................