Fuel Flashcards
What is the total fuel quantity for the SPPR system?
14150 lbs total / 7075 lbs per side (2100 gals total / 1050 gal per side)
SPPR stands for Single Point Refueling.
What is the overwing/gravity fuel quantity?
13000 lbs
This is the amount of fuel that can be added using the overwing method.
How many sections are the fuel tanks divided into?
3 sections - main tank, collector tank, and surge tank
What are the two ways to laterally transfer fuel between wing tanks?
Power transfer (XFER) via DC boost pumps, and Gravity transfer (XFlow)
How do you transfer fuel from the left wing to the right wing?
Lt. DC pump on, xfer open
What procedure should be followed if the right engine is off and the APU is running?
Lt. DC pump on, xfer open, Rt. pump off (Not documented as an approved procedure by Bombardier)
How is the fuel heated to prevent fuel sludging/freezing?
Fuel / Oil Heat Exchanger
Do you need battery power to fuel the aircraft via the SPPR system?
Yes. Fuel / Defuel SOV are powered by the Rt. Battery bus.
Is mixing of fuel types approved?
Yes
What part of the fuel tank supplies fuel to the engines?
Collector tanks
What is the function of the surge tank at the outer tip of the fuel tanks?
To provide additional expansion volume for the vent system
How do the Main Ejectors and Scavenge Ejectors operate?
Converts high pressure motive flow from the engine driven pumps into lower pressure/high volume fuel flow
What is the minimum wing fuel for go-around?
500 lbs per side
Do we need fuel anti-icing additive as long as the minimum oil temperature is achieved?
No, Fuel is heated thru the fuel/oil heat exchangers
How many water drains are in the fuel tanks?
6 total: 2 in surge tanks, 2 in main wing tanks, 2 in collector tanks
When do we sump the fuel tanks drains?
When contamination is suspected
How many fuel pumps are on the CL300/350/3500?
9 total: engine driven pumps(2), electric boost pumps(2), main ejectors(2), scavenge ejectors(2), and APU mechanical pump (1)
If the fuel transfer valve (XFER) fails to open when selected, what is the backup way of balancing the wing tanks?
Gravity transfer
In ‘AUTO’, when do the electric fuel pumps automatically turn on?
Run switch to ‘RUN’ (for engine start), Low fuel pressure indication (< 6psi), Right pump for APU operation when right engine is not running
