A300 Classic SKV Fuel System Flashcards
On the ground, what does the illumination of the TRIM TK ISOL VALVE flow bar indicate?
The refueling panel door is open.
When operating the A300 CGCC system in RANGE mode, when will AFT fuel transfer be allowed?
Above FL 205
What is normal fuel usage priority?
Center, Inner, Outer tanks
While operating with the CGCC in Payload Mode, what parts of the Fuel System are deactivated?
FWD and AFT Transfer valves.
What does a dash (-) in the place of the last digit on the fuel quantity indicator mean?
Slight degradation of system accuracy (PLUS or MINUS 100 lbs)
When does the Fuel Crossfeed Valve automatically open?
Standby generator operation and Avionics Smoke Drill
Is there a difference in the AC powered fuel boost pumps?
No, Outer tank pumps have sequence valves to reduce output pressures.
While operating with only standby generator power, what fuel pumps remain operable?
Left inner 2, Right inner 1, and Left center tank
How is fuel supplied to the engines if on battery power only?
Gravity feed from outer tanks till empty then inner tanks to 4400 lbs.
What are the 3 modes of operation for the CGCC?
Normal, Alternate, Fault mode
When operating the A300 CGCC system in RANGE mode, when will FWD fuel transfer be allowed?
After takeoff, Landing Gear and SLATS retracted.
On the A300, what fuel tanks can gravity feed the engines?
Inner wing tanks down to 4,400 lbs, and outer wing tanks until empty.
When the Avionics Smoke Drill is active, what is the normal operating sequence of the fuel pumps?
Left inner 2, Right inner 1, and Left center tank, one at a time.
After takeoff, when does the Trim Tank Isolation Valve open?
Landing Gear and SLATS retracted.
If a flight is flown below 20,000 feet (FL200) what will the Center of Gravity Control Computer System (CGCC) do to balance fuel?
Only allow forward transfer of fuel.
What is the purpose of the fuel crossfeed valve?
Fuel supply to both engines from any tank.
Where is the TOTAL fuel onboard permanently displayed?
On the ECAM MEMO and ECAM FUEL pages.
Where is the exact quantity of fuel in the Center Tank displayed?
ECAM Fuel page.
What is the approximate total fuel capacity for the A300?
120,000 LBS
Once the Auto Fuel Feed system is activated, what is the minimum number of fuel pumps required to maintain operation?
One in either Inner Tank and a Center Tank pump; 2 Total
Can the aircraft automatically balance the fuel inflight?
Yes, the CGCC system will attempt to keep the inner tanks within 440 lbs of each other during aft transfer of fuel.
Which fuel tank pumps does the auto fuel feed system have direct control of?
Auto Fuel Feed system utilizes center and inner fuel tank pumps.
When does the CGCC normally fast forward to empty the trim tank before landing?
Descending through 20,000’
What is the primary purpose to dispatch in PAYLOAD mode?
It allows a higher max landing weight.
If the auto fuel feed system is operating normally, what is required of the crew to ensure wing tank to engine feed for the approach and landing?
Nothing, the auto fuel feed system will automatically switch from the center tank to wing tanks.
When does the auto fuel feed system prohibit center tank feeding?
Three minutes after slat extension.
What is the minimum number of fuel pumps required to initiate the automatic fuel feed system?
One in each Inner Tank and a Center Tank; 3 Total
The center tank is considered empty when it contains less than _____ pounds.
400
How is the Center of Gravity Control Computer (CGCC) activated?
At least 1 trim tank pump and CGCC Mode switch in AUTO.
How long will the automatic fuel feed system allow the center tank pumps to feed on approach if the inner and outer tanks are not empty?
Three minutes after slat extension.
If inner tanks contain any fuel, both outer tanks must be _____ pounds or greater.
7,800
When operating in range mode with the inner fuel tanks not completely full, what is the maximum amount of fuel that can be in the center tank?
10,000
When operating in Payload Mode, how much fuel can be in the center tank?
less than 400
During flight on battery power only what fuel pumps are available to feed the engines?
None
Once the slats are extended for landing, is any Center Tank fuel usable?
Yes, if the auto fuel feed system is deactivated.
With the SLATS extended and the Center tank pumps deactivated, how can the fuel system be configured to allow fuel in the center tank to be used?
Select all 4 inner pump switches OFF
