Vertical Situation Display Track Possible Indications
Green “Track” - When in HDG or holding or A/P engaged.
Amber “Track” - When EPU has exceeded RNP
No “Track” - Terrain under flight plan is being displayed
Vref Represents Accurate Speed with what?
Flaps setting
Altitude
Weight
Auto Pop up of Standby Flight Director
P FD failure U nusual attitude B PT I nstrument comparison issue S FD on other side fails