engineoff -
Don't know how your regs differ over there Clearance but here in the UK we were prohibited from X-feeding during Public Transport ops except in the case of an emergency...
As per As per Flight Manual - Part 1 Section 1,
Fuel crossfeed operation is prohibited in flight except in strict accordance with the emergency procedure (page 3-2C).
Fuel crossfeed operations with vent line check valves (kit P / N 76070-30029-011) installed limited to:
Cat "A" - Emergency flight only
Cat "B" - Cruising flight only
We operate to Cat B.
Cheers
Clearance
