Originally Posted by
HLCPTR
The OP did not give enough information to answer his question.
Was the PI spike on both engines or just one side?
Was OEI TRNG manually deselected or did it do it on its own?
What was the Nr when OEI TRNG disengaged?
I saw both engines PI was going up to the red band and TRNG Mode was automatically deactivated as Nr fell down beloe 87%.
TRNG Mode was off but TQ Limiter was still on. So PI must be limited up to 114% as a function of TQ Limiter.