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AIRCRAFT SYSTEMS

HYDRAULIC

Intentionally left blank

A318/A319/A320/A321FLIGHT CREW

OPERATING MANUAL

AIRCRAFT SYSTEMSHYDRAULIC

PRELIMINARY PAGES - TABLE OF CONTENTS

82U A318/A319/A320/A321 FLEET DSC-29-PLP-TOC P 1/2FCOM 06 MAR 14

DSC-29-10 DescriptionDSC-29-10-10 General

GENERAL................................................................................................................................................................ A

DSC-29-10-20 GenerationGREEN SYSTEM PUMP.........................................................................................................................................ABLUE SYSTEM PUMPS..........................................................................................................................................BYELLOW SYSTEM PUMPS....................................................................................................................................CPOWER TRANSFER UNIT (PTU).......................................................................................................................... DRAM AIR TURBINE (RAT)......................................................................................................................................ESYSTEM ACCUMULATORS................................................................................................................................... FLOAD ALLEVIATION FUNCTION (LAF) ACCUMULATORS................................................................................. GPRIORITY VALVES.................................................................................................................................................HFIRE SHUTOFF VALVES......................................................................................................................................... ILEAK MEASUREMENT VALVES............................................................................................................................ JFILTERS...................................................................................................................................................................KGeneration................................................................................................................................................................ LReservoir Pressurization......................................................................................................................................... MIndications................................................................................................................................................................N

DSC-29-10-30 DistributionDistribution............................................................................................................................................................... A

DSC-29-20 CONTROLS AND INDICATORSOVERHEAD PANEL................................................................................................................................................AMAINTENANCE PANEL.......................................................................................................................................... BECAM HYD Page....................................................................................................................................................C

1 DSC-29-30 Warnings and CautionsWARNINGS AND CAUTIONS.................................................................................................................................AWarnings and Cautions........................................................................................................................................... B

DSC-29-40 ELECTRICAL SUPPLYBUS EQUIPMENT LIST.......................................................................................................................................... A


OPERATING MANUAL


PRELIMINARY PAGES - TABLE OF CONTENTS


82U A318/A319/A320/A321 FLEET DSC-29-PLP-TOC P 2/2FCOM 06 MAR 14


OPERATING MANUAL


PRELIMINARY PAGES - SUMMARY OF HIGHLIGHTS

82U A318/A319/A320/A321 FLEET DSC-29-PLP-SOH P 1/2FCOM 06 MAR 14

LocalizationTitle

TocIndex

ID Reason

DSC-29-PLP-TOCWarnings and Cautions

1 Documentation update: Deletion of the "00001152.0003001Warnings and Cautions" documentary unit.

DSC-29-10-20LOAD ALLEVIATION FUNCTION(LAF) ACCUMULATORS

G 1 Effectivity update: The information no longer applies to MSN 0279,0395.

DSC-29-10-30Distribution

A 1 Effectivity update: The information no longer applies to MSN 0279,0395.

DSC-29-20MAINTENANCE PANEL

B 1 Effectivity update: The information no longer applies to MSN 0279,0395.

DSC-29-30Warnings and Cautions

B 1 Effectivity update: The information no longer applies to MSN 0395.


OPERATING MANUAL


PRELIMINARY PAGES - SUMMARY OF HIGHLIGHTS


82U A318/A319/A320/A321 FLEET DSC-29-PLP-SOH P 2/2FCOM 06 MAR 14


OPERATING MANUAL


DESCRIPTION - GENERAL

82U A318/A319/A320/A321 FLEET DSC-29-10-10 P 1/2FCOM A 07 OCT 11

GENERALIdent.: DSC-29-10-10-00001133.0001001 / 10 DEC 09Applicable to: ALL

The aircraft has three continuously operating hydraulic systems : blue, green, and yellow. Eachsystem has its own hydraulic reservoir. Normal system operating pressure is 3 000 PSI (2 500 PSIwhen powered by the RAT). Hydraulic fluid cannot be transferred from one system to another.


OPERATING MANUAL


DESCRIPTION - GENERAL


82U A318/A319/A320/A321 FLEET DSC-29-10-10 P 2/2FCOM 07 OCT 11


OPERATING MANUAL


DESCRIPTION - GENERATION

82U A318/A319/A320/A321 FLEET DSC-29-10-20 P 1/6FCOM A to D → 06 MAR 14

GREEN SYSTEM PUMPIdent.: DSC-29-10-20-00001134.0001001 / 10 DEC 09Applicable to: ALL

A pump driven by engine 1 pressurizes the green system.

BLUE SYSTEM PUMPSIdent.: DSC-29-10-20-00001135.0001001 / 10 DEC 09Applicable to: ALL

An electric pump pressurizes the blue system. A pump driven by a ram air turbine (RAT) pressurizesthis system in an emergency.

YELLOW SYSTEM PUMPSIdent.: DSC-29-10-20-00001136.0001001 / 10 DEC 09Applicable to: ALL

A pump driven by engine 2 pressurizes the yellow system.An electric pump can also pressurize the yellow system, which allows yellow hydraulics to be usedon the ground when the engines are stopped.Crew members can also use a hand pump to pressurize the yellow system in order to operate thecargo doors when no electrical power is available.

POWER TRANSFER UNIT (PTU)Ident.: DSC-29-10-20-00001137.0001001 / 14 NOV 11Applicable to: ALL

A bidirectional power transfer unit enables the yellow system to pressurize the green system and viceversa.The power transfer unit comes into action automatically when the differential pressure between thegreen and the yellow systems is greater than 500 PSI.The PTU therefore allows the green system to be pressurized on the ground when the engines arestopped.


OPERATING MANUAL



82U A318/A319/A320/A321 FLEET DSC-29-10-20 P 2/6FCOM ← D to H 06 MAR 14

RAM AIR TURBINE (RAT)Ident.: DSC-29-10-20-00001138.0001001 / 10 DEC 09Applicable to: ALL

A drop-out RAT coupled to a hydraulic pump allows the blue system to function if electrical power islost or both engines fail. The RAT deploys automatically if AC BUS 1 and AC BUS 2 are both lost. Itcan be deployed manually from the overhead panel. It can be stowed only when the aircraft is on theground.

SYSTEM ACCUMULATORSIdent.: DSC-29-10-20-00001139.0001001 / 10 DEC 09Applicable to: ALL

An accumulator in each system helps to maintain a constant pressure by covering transient demandsduring normal operation.

LOAD ALLEVIATION FUNCTION (LAF) ACCUMULATORSIdent.: DSC-29-10-20-00001140.0001001 / 10 DEC 09

1 Applicable to: MSN 0189-0342

Four additional accumulators perform the load alleviation function. These accumulators (one for thegreen system and one for the yellow system on each wing) maintain the required pressure duringhigh-rate operations of the various movable wing surfaces.

PRIORITY VALVESIdent.: DSC-29-10-20-00001141.0001001 / 10 DEC 09Applicable to: ALL

Priority valves cut off hydraulic power to heavy load users if hydraulic pressure in a system gets low.


OPERATING MANUAL



82U A318/A319/A320/A321 FLEET DSC-29-10-20 P 3/6FCOM I to K 06 MAR 14

FIRE SHUTOFF VALVESIdent.: DSC-29-10-20-00001142.0001001 / 10 DEC 09Applicable to: ALL

Each of the green and yellow systems has a fire shutoff valve in its line upstream of its engine-drivenpump. The flight crew can close it by pushing the ENG 1(2) FIRE pushbutton.

LEAK MEASUREMENT VALVESIdent.: DSC-29-10-20-00001143.0001001 / 10 DEC 09Applicable to: ALL

Each system has a leak measurement valve upstream of the primary flight controls.These valves, which measure the leakage in each circuit, are closed by operation of the LEAKMEASUREMENT VALVES pushbutton switch on the maintenance panel.

FILTERSIdent.: DSC-29-10-20-00001144.0001001 / 16 MAR 11Applicable to: ALL

L3 Filters clean the hydraulic fluid as follows :‐ HP filters on each system and on the reservoir filling system and the normal braking system‐ return line filters on each line‐ case drain filters on engine pumps and the blue electric pump (which permit maintenance crew to

monitor pump wear by inspecting the filters for the presence of metallic particles).


OPERATING MANUAL



82U A318/A319/A320/A321 FLEET DSC-29-10-20 P 4/6FCOM L to M → 06 MAR 14

GENERATIONIdent.: DSC-29-10-20-00001145.0001001 / 08 FEB 13Applicable to: ALL

RESERVOIR PRESSURIZATIONIdent.: DSC-29-10-20-00001146.0001001 / 08 FEB 13Applicable to: ALL

Normally, HP bleed air from engine 1 pressurizes the hydraulic reservoirs automatically.If the bleed air pressure is too low, the system takes bleed air pressure from the crossbleed duct.The systems maintain a high enough pressure to prevent their pumps from cavitating.


OPERATING MANUAL



82U A318/A319/A320/A321 FLEET DSC-29-10-20 P 5/6FCOM ← M 06 MAR 14


OPERATING MANUAL



82U A318/A319/A320/A321 FLEET DSC-29-10-20 P 6/6FCOM N 06 MAR 14

INDICATIONSIdent.: DSC-29-10-20-00001147.0002001 / 09 OCT 12Applicable to: ALL


OPERATING MANUAL


DESCRIPTION - DISTRIBUTION

82U A318/A319/A320/A321 FLEET DSC-29-10-30 P 1/2FCOM A → 06 MAR 14

DISTRIBUTIONIdent.: DSC-29-10-30-00001148.0001001 / 08 FEB 13



OPERATING MANUAL


DESCRIPTION - DISTRIBUTION

82U A318/A319/A320/A321 FLEET DSC-29-10-30 P 2/2FCOM ← A 06 MAR 14

DISTRIBUTIONIdent.: DSC-29-10-30-00001148.0002001 / 08 FEB 13Applicable to: MSN 0112


OPERATING MANUAL


CONTROLS AND INDICATORS

82U A318/A319/A320/A321 FLEET DSC-29-20 P 1/8FCOM A → 06 MAR 14

OVERHEAD PANELIdent.: DSC-29-20-00001149.0001001 / 07 MAY 13Applicable to: ALL

(1) ENG 1 (2) PUMP pbOn : The pump pressurizes the system when the engine is running.OFF : The pump is depressurized. The generation of hydraulic power stops.FAULT lt : This amber light comes on, and the ECAM caution appears, if :

‐ The reservoir level is low‐ The reservoir overheats‐ The reservoir air pressure is low‐ The pump pressure is low (inhibited on the ground, when the engine is

stopped).This light goes out, when the crew selects OFF, except during an overheat. (Thelight stays on as long as the overheat lasts).

(2) BLUE ELEC PUMP pb (guarded)AUTO : If AC power is available, the electric pump operates :

‐ In flight‐ On the ground, if one engine is running or if the crew has pressed the BLUE

PUMP OVRD pushbutton on the maintenance panel.OFF : The pump is de-energized.


OPERATING MANUAL



82U A318/A319/A320/A321 FLEET DSC-29-20 P 2/8FCOM ← A → 06 MAR 14

FAULT lt : This amber light comes on, and a caution appears on the ECAM, if :‐ The reservoir level is low‐ The reservoir overheats‐ The air pressure in the reservoir is low‐ The pump is delivering low pressure (inhibited on the ground, when the

engines are stopped)‐ The pump overheats.The light goes out, when the crew selects OFF, except during an overheat. (Thelight stays on as long as the overheat lasts).

(3) YELLOW ELEC PUMP pb sw (springloaded)ON : The electric pump is ON.

If the electrical power supply is removed, the pump will remain off whenelectrical power is applied again.

Off : The pump is off.It comes on automatically when a crewman sets the lever of the cargo doormanual selector valve to OPEN or CLOSE.This inhibits the operation of other yellow system functions (except alternatebraking and engine 2 reverse).

FAULT lt : This amber light, accompanied by an ECAM caution, comes on if :‐ the reservoir level is low‐ air pressure in the reservoir is low‐ the reservoir overheats‐ pump pressure is low‐ the pump overheats.The light goes out when the crew selects OFF, except during an overheat. (Thelight stays on as long as the overheat lasts).

(4) PTU pb swAUTO : The bidirectional power transfer unit is armed and both the yellow and the green

electrohydraulic valves are open.The power transfer unit runs automatically when the differential pressurebetween the green and yellow systems is more than 500 PSI.Note: The PTU is inhibited during the first engine start and automatically

tested during the second engine start.

OFF : Both the green and the yellow PTU electrohydraulic valves close. Power transferstops.


OPERATING MANUAL



82U A318/A319/A320/A321 FLEET DSC-29-20 P 3/8FCOM ← A to B → 06 MAR 14

FAULT lt : This amber light comes on, and a caution appears on the ECAM, if :‐ the green or the yellow reservoir overheats‐ the green or the yellow reservoir has low air pressure‐ the green or the yellow reservoir has a low flluid level.The light goes out when the crew selects OFF, except during an overheat. (Thelight stays on as long as the overheat lasts).

(5) RAT MAN ON pbThe flight crew may extend the RAT at any time by pressing the RAT MAN ON pushbutton.Note: The RAT extends automatically if AC BUS 1 and AC BUS 2 are lost. (Refer to

DSC-24-20 Overhead Panel (Cont'd)).

MAINTENANCE PANELIdent.: DSC-29-20-00001150.0001001 / 07 MAY 13


(1) BLUE PUMP OVRD pb sw (guarded)ON : The blue electric pump is on if the ELEC PUMP pushbutton switch on the HYD panel

is at AUTO.Off : The blue electric pump is off.


OPERATING MANUAL



82U A318/A319/A320/A321 FLEET DSC-29-20 P 4/8FCOM ← B → 06 MAR 14

(2) LEAK MEASUREMENT VALVES pb sw (guarded)OFF: The corresponding electrohydraulic valve closes and shuts off hydraulic supply to the

primary flight controls.On : The corresponding electrohydraulic valve opens to go back to normal hydraulic

supply.

MAINTENANCE PANELIdent.: DSC-29-20-00001150.0002001 / 07 MAY 13Applicable to: MSN 0112

(1) BLUE PUMP OVRD pb sw (guarded)ON : The blue electric pump is on if the ELEC PUMP pushbutton switch on the HYD panel

is at AUTO.Off : The blue electric pump is off.

(2) LEAK MEASUREMENT VALVES pb sw (guarded)OFF: The corresponding electrohydraulic valve closes and shuts off hydraulic supply to the

primary flight controls.On : The corresponding electrohydraulic valve opens to go back to normal hydraulic

supply.


OPERATING MANUAL



82U A318/A319/A320/A321 FLEET DSC-29-20 P 5/8FCOM ← B to C → 06 MAR 14

(3) GREEN LEAK MEASUREMENT VALVES pb sw (guarded)Pushbutton not active. The green electrohydraulic valve is always open.

ECAM HYD PAGEIdent.: DSC-29-20-00001151.0001001 / 22 MAY 12Applicable to: ALL

(1) Reservoir quantityIt is in green, unless the fluid level goes below the warning level, in which case it becomesamber.


OPERATING MANUAL



82U A318/A319/A320/A321 FLEET DSC-29-20 P 6/8FCOM ← C → 06 MAR 14

(2) Reservoir LO AIR PRESSThis appears in amber, and a caution appears on ECAM, if the air pressure for the indicatedreservoir drops below normal.

(3) Reservoir OVHTThis appears in amber, and a caution appears on ECAM, if the temperature of returninghydraulic fluid temperature at the inlet to its reservoir is above normal.

(4) FIRE VALVECross line - Amber : The valve is fully closed.In line - Green : The valve is not fully closed.

(5) OVHTThis appears in amber if the electric pump for that system (blue or yellow) overheats.

(6) RATRAT ▹ White : The RAT is stowed.RAT Green : The RAT is not stowed.RAT ▸ Amber : Pressure for stowing the RAT has been applied, or the RAT pump is

not available.

(7) ELECThis legend, normally white, becomes amber if the associated power supply fails.

(8) YELLOW ELEC PUMP control◃ White : The electric pump is off.

Green : The electric pump is ON.


OPERATING MANUAL



82U A318/A319/A320/A321 FLEET DSC-29-20 P 7/8FCOM ← C → 06 MAR 14

◂ Amber : The electric pump is ON and the yellow system has low pressure.

(9) PTU control

(1)Green : The power transfer unit (PTU) pushbutton switch is in AUTO and the PTU is

not transferring pressure.Amber : The PTU pb-sw is OFF.

(2)Green : The PTU is supplying the green hydraulic system.

(3)Green : The PTU is supplying the yellow hydraulic system.

(10) ENG PUMP control and low pressure indicationIn line (Green) : The pushbutton switch for the designated PUMP is on and hydraulic

pressure is normal.Cross line (Amber) : The pushbutton switch for the designated PUMP is OFF.“LO” (Amber) : The pushbutton switch for the designated PUMP is on and hydraulic

pressure is low.

(11) System labelpressure > 1 450 PSI pressure < 1 450 PSI

YELLOW white amber▵ green amber

(12) System pressureThis legend, normally green, becomes amber when system pressure is below 1 450 PSI.


OPERATING MANUAL



82U A318/A319/A320/A321 FLEET DSC-29-20 P 8/8FCOM ← C 06 MAR 14

(13) PUMPThis legend, normally white, becomes amber when N2 is below idle.


OPERATING MANUAL


WARNINGS AND CAUTIONS

82U A318/A319/A320/A321 FLEET DSC-29-30 P 1/8FCOM A → 06 MAR 14

WARNINGS AND CAUTIONSIdent.: DSC-29-30-00001152.0001001 / 07 MAR 13Applicable to: MSN 0189


OPERATING MANUAL




E/WD : FAILURE TITLEconditions

AURALWARNING

MASTERLIGHT

SD PAGECALLED

LOCALWARNING

FLTPHASEINHIB

B + YB + G SYS LO PRY + Gsystem pressure ≤ 1 450 PSI(reset if pressure ≥ 1 750 PSI)

CRC MASTERWARN FAULT lt 4, 5 (1)

G (Y)(B) RSVR LO AIR PRreservoir air pressure ≤ 22 PSI(reset if air pressure ≥ 25 PSI)G (Y)(B) RSVR OVHTfluid temperature ≥ 93 °C(reset if temp ≤ 88 °C)

3, 4, 5, 7, 8

G (Y)(B) RSVR LO LVLfluid quantity :

< 3.5 l (0.92 US Gal) (green-yellow)< 2.4 l (0.63 US Gal) (blue)

FAULT lt onassociatedpump(s) pband on PTUpb if Y or Gsys affected

G (Y) ENG 1(2) PUMP LO PRpump outlet pressure ≤ 1 750 PSI(reset if pressure ≥ 2 200 PSI)Y ELEC PUMP LO PRyellow system pressure ≤ 1 450 PSI(reset if pressure ≥ 1 750 PSI) with- Y ELEC PUMP pb at ON- Y ENG PUMP and PTU not availableB ELEC PUMP LO PRpump outlet pressure ≤ 1 450 PSI(reset if pressure ≥ 1 750 PSI)

4, 5, 7, 8

B ELEC PUMP OVHTY ELEC PUMP OVHT 3, 4, 5, 7, 8

G (Y) SYS LO PRsystem pressure ≤ 1 450 PSI(reset if pressure ≥ 1 750 PSI)

FAULT lton affectedpump pb

4, 5, 7, 8 (1)

B SYS LO PRsystem pressure ≤ 1 450 PSI(reset if pressure ≥ 1 750 PSI)

NIL 1, 4, 5,7, 8, 10

PTU FAULTPTU not running on ground in case differentialpressure higher than 650 PSI between G andY system, or in flight PTU still at AUTO position

SINGLECHIME

MASTERCAUT

HYD

FAULT lt onlyin case of Gor Y RSVRLO LVL orRSVR LO

3, 4, 5,8, 9, 10

Continued on the following page


OPERATING MANUAL




Continued from the previous page


AURALWARNING

MASTERLIGHT

SD PAGECALLED

LOCALWARNING

FLTPHASEINHIB

in case of G or Y reservoir low level and G or Ysystem low pressure.

AIR PR orRSVR OVHT

RAT FAULTRAT not fully stowed or pressure present in RATstowing actuator or RAT pump not available

NIL 3, 4, 5,6, 7, 8, 9

(1) Inhibited on the ground (flight phases 1, 2, 9, 10) when corresponding engine is shut down.

MEMO DISPLAY‐ “RAT OUT” appears green, if the ram air turbine is not fully stowed.

The color changes to amber during flight phases 1 and 2.‐ “HYD PTU” appears green, when the power transfer unit is running.

WARNINGS AND CAUTIONSIdent.: DSC-29-30-00001152.0002001 / 15 FEB 11Applicable to: MSN 0342


OPERATING MANUAL





AURALWARNING

MASTERLIGHT

SD PAGECALLED

LOCALWARNING

FLTPHASEINHIB

B + YB + G SYS LO PRY + Gsystem pressure ≤ 1 450 PSI(reset if pressure ≥ 1 750 PSI)


G (Y) RSVR LO AIR PRreservoir air pressure ≤ 22 PSI(reset if air pressure ≥ 25 PSI)

3, 4, 5, 7, 8

B RSVR LO AIR PRreservoir air pressure ≤ 30 PSI(detected in flight but only displayed on ground afterlanding)

1, 2, 3,4, 5, 6, 7

B RSVR LO AIR PRreservoir air pressure ≤ 22 PSIreset if pressure ≥ 25 PSIG (Y)(B) RSVR OVHTfluid temperature ≥ 93 °C(reset if temp ≤ 88 °C)

3, 4, 5, 7, 8

G (Y)(B) RSVR LO LVLfluid quantity :


FAULT lt onassociatedpump(s) pband on PTUpb if Y or Gsys affected

G (Y) ENG 1(2) PUMP LO PRpump outlet pressure ≤ 1 750 PSI(reset if pressure ≥ 2 200 PSI)Y ELEC PUMP LO PRyellow system pressure ≤ 1 450 PSI(reset if pressure ≥ 1 750 PSI) with- Y ELEC PUMP pb at ON- Y ENG PUMP and PTU not availableB ELEC PUMP LO PRpump outlet pressure ≤ 1 450 PSI(reset if pressure ≥ 1 750 PSI)

4, 5, 7, 8


G (Y) SYS LO PRsystem pressure ≤ 1 450 PSI(reset if pressure ≥ 1 750 PSI)

SINGLECHIME

MASTERCAUT

HYD


4, 5, 7, 8 (1)



OPERATING MANUAL



82U A318/A319/A320/A321 FLEET DSC-29-30 P 5/8FCOM ← A to B → 06 MAR 14



AURALWARNING

MASTERLIGHT

SD PAGECALLED

LOCALWARNING

FLTPHASEINHIB

B SYS LO PRsystem pressure ≤ 1 450 PSI(reset if pressure ≥ 1 750 PSI)

NIL 1, 4, 5,7, 8, 10

PTU FAULTPTU not running on ground in case differentialpressure higher than 650 PSI between G andY system, or in flight PTU still at AUTO positionin case of G or Y reservoir low level and G or Ysystem low pressure.

FAULT lt onlyin case of Gor Y RSVRLO LVL orRSVR LOAIR PR or

RSVR OVHT

3, 4, 5,8, 9, 10


NIL 3, 4, 5,6, 7, 8, 9

(1) Inhibited on the ground (flight phases 1, 2, 9, 10) when corresponding engine is shut down.

MEMO DISPLAY‐ “RAT OUT” appears green, if the ram air turbine is not fully stowed.

The color changes to amber during flight phases 1 and 2.‐ “HYD PTU” appears green, when the power transfer unit is running.

WARNINGS AND CAUTIONSIdent.: DSC-29-30-00001152.0005001 / 15 FEB 11

1 Applicable to: MSN 0112


OPERATING MANUAL



82U A318/A319/A320/A321 FLEET DSC-29-30 P 6/8FCOM ← B → 06 MAR 14

E/WD: FAILURE TITLEConditions

AURALWARNING

MASTERLIGHT

SD PAGECALLED

LOCALWARNING

FLTPHASEINHIB

B + YB + G SYS LO PRY + GSystem pressure ≤ 1 450 PSI(reset if pressure ≥ 1 750 PSI)


G (Y) RSVR LO AIR PRAir pressure of the reservoir ≤ 22 PSI(reset if air pressure ≥ 25 PSI)

3, 4, 5, 7, 8

B RSVR LO AIR PRReservoir air pressure ≤ 30 PSI(detected in flight but only displayed on ground afterlanding)

1, 2, 3,4, 5, 6, 7

B RSVR LO AIR PRReservoir air pressure ≤ 22 PSIreset if pressure ≥ 25 PSIG (Y)(B) RSVR OVHTFluid temperature ≥ 93 °C(reset if TEMP ≤ 88 °C)

3, 4, 5, 7, 8

G (Y)(B) RSVR LO LVLFluid quantity:


FAULT lt onassociatedpump(s) pband on PTUpb-sw if Yor G SYSaffected

4, 5 (2), 7, 8

G (Y) ENG 1(2) PUMP LO PRPump outlet pressure ≤ 1 750 PSI(reset if pressure ≥ 2 200 PSI)Y ELEC PUMP LO PRYellow system pressure ≤ 1 450 PSI(reset if pressure ≥ 1 750 PSI) with- YELLOW ELEC PUMP pb-sw at ON- Y ENG PUMP and PTU not availableB ELEC PUMP LO PRPump outlet pressure ≤ 1 450 PSI(reset if pressure ≥ 1 750 PSI)

4, 5, 7, 8


G (Y) SYS LO PRSystem pressure ≤ 1 450 PSI(reset if pressure ≥ 1 750 PSI)

SINGLECHIME

MASTERCAUT

HYD


4, 5, 7, 8 (1)



OPERATING MANUAL



82U A318/A319/A320/A321 FLEET DSC-29-30 P 7/8FCOM ← B 06 MAR 14


E/WD: FAILURE TITLEConditions

AURALWARNING

MASTERLIGHT

SD PAGECALLED

LOCALWARNING

FLTPHASEINHIB

B SYS LO PRSystem pressure ≤ 1 450 PSI(reset if pressure ≥ 1 750 PSI)

NIL 1, 4, 5,7, 8, 10

PTU FAULTPTU not running on ground in case the differentialpressure is above650 PSI, between G and Ysystem, or in flight PTU still at AUTO positionin case of G or Y reservoir low level and G or Ysystem low pressure.

FAULT lt onlyin case of Gor Y RSVRLO LVL orRSVR LOAIR PR or

RSVR OVHT

3, 4, 5,8, 9, 10


NIL 3, 4, 5,6, 7, 8, 9

(1) Inhibited on the ground (flight phases 1, 2, 9, 10) when corresponding engine is shut down.(2) The HYD G(Y) RSVR LO LVL alert is inhibited for the first 15 s of flight phase 5.

The HYD B RSVR LO LVL alert is inhibited for the entire flight phase 5.

MEMO DISPLAY‐ “RAT OUT” appears in green, if the ram air turbine is not fully stowed.

The color changes to amber during flight phases 1 and 2.‐ “HYD PTU” appears in green, when the power transfer unit is running.


OPERATING MANUAL




82U A318/A319/A320/A321 FLEET DSC-29-30 P 8/8FCOM 06 MAR 14


OPERATING MANUAL


ELECTRICAL SUPPLY

82U A318/A319/A320/A321 FLEET DSC-29-40 P 1/2FCOM A 07 OCT 11

BUS EQUIPMENT LISTIdent.: DSC-29-40-00001153.0001001 / 17 MAR 11Applicable to: ALL

NORM EMER ELEC

AC DC ACESS

DCESS HOT

ENG 1 driven PUMP control DC1ENG 2 driven PUMP control DC2ENG 1 FIRE shut off valve XENG 2 FIRE shut off valve X

power AC1BLUE ELECPUMP control X

power AC2(1)YellowELEC PUMP control DC2

Power Transfer Unit DC2

LEAK MEASUREMENT VALVES DCGRND/FLT

Manual control HOT 2RAT Auto control HOT 1(1) or from external power.


OPERATING MANUAL


ELECTRICAL SUPPLY


82U A318/A319/A320/A321 FLEET DSC-29-40 P 2/2FCOM 07 OCT 11

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