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valves, cycling its inner tank contents between 3500kg and 4000kg.
ON – Initiates outer to inner tank transfer by:
- outer transfer valves open
- outer inlet valves open
- inner inlet valves open
FAULT Lt – Amber with ECAM when:
- inner tank L LEVEL and centre tank not empty, or
- FCMC unable to carry out transfer to inner tanks
- FUEL LO TEMP is triggered
ACT
OFF – FCMC controls the ACT to centre tank transfer. Transfer starts at slat
retraction if centre tank <23,000kg. ACT transfer stops if centre tank high level
sensor becomes wet and resumes when <23,000kg. ACT fuel is transferred using
cabin air pressure.
FWD – Initiates manual fwd transfer to centre tank by opening:
- ACT transfer valve
- ACT inlet valve
Then ACT transfer pump turns ON.
FAULT Lt – Amber with ECAM when
- WING TK LO LVL
- FCMC unable to carry out transfer to centre tank
AU
T
O
Overhead Panel Switches
23-Jan-07 For reference only
INR TK SPLIT L (or R)
OFF – Split valve open. Inner tank used as single tank.
ON – Valve closes, tank split, light white.
- fwd part feeds inboard eng
- aft part feeds outboard eng and receives any XFRD fuel to the inner
tank from the centre, outer or t.tank.
SHUT – Blue when valve shut
- During refueling, first inner tank high level sensor becomes wet, valve closes
- Valve reopens when fueling complete
JETTISON
ARM
Output rate when jettisoning is ≈ 1000kg per minute excl burn.
All X FEED valves automatically open.
All main and stby pumps run
Fwd transfer into centre regardless of config
OFF – Jettison is disarmed
ON – Jettison armed can be activated with ACTIVATE pb.
ACTIVATE
OFF – Jettison inactive
ON – Active, provided ARM pb is ON
OPEN Lt – Jettison valves open
FUEL REFUEL
ON – Refueling according to BLOCK FUEL qty displayed on FMGS MCDU INIT B
page.
END Lt - refueling complete
Flashes when - refueling aborted
- high level test is negative
- imbalance >3000kg after refueling
28. FUEL A330
Overhead Panel Switches
23-Jan-07 For reference only
L 1(or R)(or 2)
Supplies fuel from its own collector cell which it shares with the other main pump
and is maintained full at 1,000kg for negative ‘g’ protection.
ON – Pump is on
OFF – Pump is off.
FAULT Lt – Amber with ECAM when pressure drops. Inhibited when OFF sel.
L STBY 1(or R)
ON – Pump runs when main pump fails or off
OFF – Pump is off
FAULT Lt – Amber with ECAM when pressure drops. Inhibited when OFF is
selected or main pump running.
T.TANK FEED
ISOL As per A340.
AUTO
OPEN
OUTR TK XFR
As per A340
X FEED 1
AUTO – Valve normally closed. Both open automatically when:
- in electrical emergency config (if on RAT pump L2 only with pump
R2 as backup)
ON – Valve opens
OPEN Lt – Green when fully open
INR TK SPLIT L (or R)
OFF – Split valve open
ON - Valve closes, tank split, light white.
- either inner tank division can be used
SHUT – Blue when valve shut
FUEL REFUEL
ON – Refueling according to BLOCK FUEL qty displayed on FMGS MCDU INIT B
page.
END Lt - refueling complete
Flashes when - refueling aborted
- high level test is negative
- imbalance >3000kg after refueling
A
U
T
O
Overhead Panel Switches
23-Jan-07 For reference only
29. HYDRAULICS A340
A330
ENG 1 (2,3,4) PUMP
All systems have accumulators to maintain constant pressure. HP bleed air from
Eng 2 (Eng 1 A330) pressurize hydraulic reservoirs and if air press too low, uses
air from X-bleed duct.
ON – Pump pressurizes the system when eng is running @ 3000psi.
OFF - Pump is depressurized. Power generation stops.
FAULT Lt – Amber with ECAM if - reservoir low level
- reservoir overheats
- reservoir low air pressure
- pump low pressure
Extinguish when OFF sel. Except in overheat case (light stays on until overheat gone)
ELECTRIC HYD PUMPS
GREEN ELEC PUMP (or YELLOW)
AUTO – Pump is auto controlled by HSMU
- Green runs for 25sec if eng 1 or 4 (either A330) fails when gear
lever selected up and speed >100kts
- Green runs on gnd when eng 1 & 4 stopped & 2 & 3 running(A340 only)
- Yellow runs when eng 3 (eng 2 A330) fails and FLAPS lever not at zero &
>100kts. Remains until last eng shutdown.
Overhead Panel Switches
　
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