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- Deactivation only occurs on gnd when eng 1 & 4 (1& 2 A330)
shutdown with N2 <50% (A340 & A330).
- If pressed in flight LAND RECOVERY pb will need to be ON to
recover LAND RECOVERY AC and DC BUSES.
EMER GEN MAN ON
When Green HYD sys powered by eng driven pump the EMERG
GEN supplies:
- AC ESS BUS
- AC ESS SHED
- through ESS TR :
- DC ESS BUS
- DC ESS SHED
When Green HYD sys powered by RAT the EMERG GEN supplies:
- AC ESS BUS
- DC ESS BUS through the ESS TR.
If buses 1.1 & 2.4 (1 & 2 A330) are lost and eng 1& 4 (1 & 2 A330)are lost the RAT extends
automatically to power EMERG GEN.
AUTO – In flight EMEG GEN auto starts if normal AC is lost.
Pressed – EMERG GEN runs.
EMERG GEN FAULT Lt – Red when not supplying and normal AC is lost.
Overhead Panel Switches
23-Jan-07 For reference only
LAND
RECOVERY
A340
ON – In EMERG GEN config, AC LAND RECOVERY & DC LAND RECOVERY
buses are restored to power:- LGCIU 1
- SFCC 1 (no flap if powered by RAT)
- ILS 1
A330
ON – In EMERG GEN config, AC LAND RECOVERY & DC LAND RECOVERY buses are
restored to power:-
- LGCIU 1
- SFCC 1 (no flap if powered by RAT or batteries)
- ILS 1
- BSCU channel 1
- LH windshield anti ice (not if powered by RAT or batteries)
- LH LANDING light
A340 & A 330
Remaining fuel pump (if any) is lost. Pump may already be lost if below 260kt and emerg gen is
powered by the RAT.
26. FIRE
ENG 1(2,3,4) FIRE
When released out-
- aural warning cancelled
- squib armed
- fuel LP valve closed
- eng return valve closed
- hyd fire valve closed
- eng bleed valve close (adj eng also A340)
- pack flow control valve closed
- FADEC pwr supply cut
FIRE Lt – Red whenever fire detected
AGENT 1 AGENT 2
Both become active when ENG FIRE pb is released. Discharge
when pushed.
SQUIB Lt – when ENG FIRE pb released
DISCH Lt – Amber when bottle lost pressure
Overhead Panel Switches
23-Jan-07 For reference only
TEST
When pushed – continuous repetitive chime
- MASTER WARNING Lt flashes
- ECAM ENG FIRE activated
On fire panel – all ENG FIRE pb Red
- all SQUIB Lts white(provided charged)
- all DISCH Lts Amber
Fire lights come on, Eng pedestal fire lights also come on.
APU FIRE
When released out –
- APU shuts down
- aural warning cancelled
- squib armed
- LP fuel valve closes
- APU fuel pumps shut off (fwd & aft)
- APU bleed valve and X bleed valve close
- APU gen de-activated
FIRE Lt – Red whenever fire detected
AGENT
Becomes active when ENG FIRE pb is released.
Discharges when pushed.
SQUIB Lt – when ENG FIRE pb released
DISCH Lt – Amber when bottle lost pressure
Note: Red disc at rear of fuselage signals agent not discharged overboard due to bottle
overpressure.
TEST
As per Eng fire test.
VENTILATION
AVNCS
Detection by 2 smoke detectors (ionization type) in the air extraction duct of
avionics ventilation system. Each detector is linked to one of two detection loops.
SMOKE Lt – Red with ECAM when smoke detected in avionics ventilation duct.
Overhead Panel Switches
23-Jan-07 For reference only
CARGO SMOKE PANEL
FWD AGENT (AFT AGENT)
Pressing – Squib is ignited and extinguishing agent is discharged into appropriate
compartment.
- 2 bottles ignite at once
- BTL 1 discharges into comp over ≈ 60sec
- BTL 2, slow flow metering system ensures concentration for 280min.
The SDCU (Smoke Detection Control Unit) monitors squib integrity and bottle pressure.
SQUIB Lt - White in case of positive test.
DISCH
BTL 1 or BTL 2 – White light when bottle is discharged
TEST
Pressing - smoke detectors in FWD, AFT, & BULK are tested by SDCU in sequence.
- BTL 1(2) Lts white
- isolation valves of ventilation system close
- SQUIB Lt white provided 1 of 2 filaments serviceable
- SMOKE Lt (AFT,FWD CARGO, AVNCS) Red with ECAM & chimes
Note: Each SDCU channel sounds its own warning which lasts about 25 seconds with a delay of
about 30 seconds between them.
Overhead Panel Switches
23-Jan-07 For reference only
27. FLIGHT CONTROLS
PRIM 1(2,3)
Control the FCPC (Flight Control Primary Computers)
ON : The following functions are provided by each computer
- normal pitch
- normal lateral
- MLA
- speed brakes, ground spoilers control logic
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