Originally Posted by
TBL Warrior
‘IAN’ is option #25 for the 73, and PX doesn’t have the option. I think TCF may be an option too, further reading shows that the 76 has TCF, notability it is mentioned in Boeing’s FCOM for the 76, but not for the 77,78 or 73...
Just FYI P2 PXE was fitted with IAN .However crews never received proper training in its use.