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SQUIB and DISCH light illuminated *
MASTER WARN lights illuminated (2) (red)
CRC aural chime
APU FIRE warning on E/WD (red)
APU page on SD
* BAT only (when doing Safety and Power On checklist on Battery only, no
External power)
ENG FIRE pb pressed performs: (work down panel with 2,1,2,1,2 sequence –
two on FIRE, one on HYD, two on FUEL, one on ELEC, two on AIR COND)
FIRE - Silences CRC, Arms squibs (2)
HYD – Closes hydraulic fire valve (1)
FUEL - Closes low pressure fuel valve and turns off FADEC (2)
ELEC - Deactivates the IDG (1)
AIR COND- Closes engine bleed & pack flow valves (2)
APU FIRE pb pressed performs: (work down panel with 3, 0, 2,1,2 sequence)-
FIRE - Silences CRC, Shuts down APU, Arms squib (3)
HYD - (0)
FUEL - Closes low pressure fuel valve & APU fuel pump off (2)
ELEC - Deactivates APU GEN (1)
AIR COND- Closes APU bleed & Crossbleed valves (2)
Cargo Smoke Detector test - press & release button for test. You should get (PH
3.4.1):
DISCH amber lights illuminate.
SMOKE red lights illuminate
MASTER WARN light illuminate
CRC aural
CARGO SMOKE on E/WD
This test will run twice after you select it once to test both channels. Note: DISCH
amber lights only on first test.
If the CARGO SMOKE bottle is fired the indications you can expect are:
Red SMOKE light remains on (smoke & bottle discharge are trapped)
Both amber DISCH lights will come on and remain on (only one bottle)
US Airways Airbus A319, A320, A321 Notes
14
Fuel (TM 7-28.x)
Surge
tank
Outer
wing tank
1560 lbs.
(N/A 321)
Inner wing
tank
12,190
lbs.
Center
tank
14,500
lbs.
Inner wing
tank
12,190
lbs.
Outer
wing tank
1560 lbs.
(N/A 321)
Surge
tank
A319/320:
Total Left Wing Fuel
13,750
Total Center Fuel
14,500 lbs.
Total Right Wing Fuel
13,750
A321:
Total Left Wing Fuel
13,750
Total Center Fuel
25,000 lbs.
Total Right Wing Fuel
13,750
Total Fuel – A319/320: 42,000 lbs., A321: 52,500 lbs.
Fuel Philosophy: Fuel in center last, Center fuel emptied first
Takeoff on center tank prohibited (PH 1.6.4)
Fuel may not be added to ACT unless center tank is full (A321) except by MEL.
The center tank pumps run at a higher override pressure (A319, A320) so the
center tank fuel will be burned before the wing tank fuel will be even though
center and wing pumps are both providing fuel pressure to the manifold at the
same time.
If both pumps in same tank fail, only the inner wing tanks can suction feed.
Center tank fuel would be unusable.
APU fuel is drawn from the left fuel manifold. The APU normally uses the tank
pump pressure but has its own fuel pump that it will use if no other fuel pump
pressure is available.
Losing one center pump requires opening crossfeed valve (one ECAM chime)
Losing one inner tank pump just requires turning off the pump switch (no chime)
Losing two center tank pumps will make any remaining center fuel unusable (no
suction feed).
A321 only:
2 Additional
Center Tanks
10,500 lbs
US Airways Airbus A319, A320, A321 Notes
15
Losing two inner tank pumps will put that wing on gravity (suction) feed. There is
a chart to determine safe altitudes for gravity feeding in the QRH pg. 35.
Normally fuel is run in Auto mode. This will run the wing tanks continuously and
the center tank on a schedule. The Auto mode schedule for the center tank is to
run the center tank pumps any time there is fuel in the center tank except when
the slats are extended. Exceptions to the Auto schedule:
After engine start the center tanks will run for at least two minutes for a
“test run” even if the slats have already been extended. If slats are not
extended pumps will continue to run as normal until they are extended.
The pumps will restart again after takeoff when the slats are retracted.
After the center tanks run dry the pumps will continue to run for 5 more
mins.
If IDG return fuel fills the outer wing tank the extra fuel will spill over into
the inner wing tank. If the inner wing tank fills completely up then the
center tank pump on that side will be automatically turned off to allow wing
tank fuel to be burned until 1,100 lbs. has been used. Then the center
tank pump will turn on again. This prevents surge tank spillage.
The fuel in the outer wing tanks will gravity feed through two transfer valve
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