Re: Kaboom required
But this Space.com item :
says the IFA will be before the Falcon 9 engines shutdown:
"During Saturday's test, that will happen about 90 seconds after liftoff, after which the Falcon 9's first stage engines will shut down. "
i.e. the opposite of this Registem article which says the early engine shutdown will trigger the IFA.
I'm guessig space.com is the right one.