ETOPS

Question 1

only 2 Suppl proc

Answer 1

APU Operation
Fuel Crossfeed Valve check

Question 2

Fuel Crossfeed valve check DO WHEN?

Answer 2

Before engine start and during last hour of cruise.

Question 3

Explain test

Answer 3

CF selector - open
verify VALVE OPEN light illuminates bright, then dim.
CF selector - close
verify valve open light illuminates bright, then extinguish.