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注册时间2009-12-25最后登录2021-7-10在线时间3302 小时阅读权限200积分10帖子13416精华1UID2036
 
   
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| PNEUMATIC MENU Normal Operation 1/62 PNEUMATIC MENU Normal Operation 2/62
 PNEUMATIC MENU
 Normal Operation 3/62
 You are in the Preliminary Cockpit
 Preparation phase.
 To better illustrate what occurs
 in the pneumatic system, select the
 ECAM BLEED page using the
 ECAM control panel.
 PNEUMATIC MENU Normal Operation 4/62
 You are in the Preliminary Cockpit
 Preparation phase.
 No. Press the BLEED key on the
 Ecam Control Panel.
 PNEUMATIC MENU Normal Operation 5/62
 You are in the Preliminary Cockpit
 Preparation phase.
 No. Press the BLEED key on the
 Ecam Control Panel.
 PNEUMATIC MENU
 Normal Operation 6/62
 Let’s talk about the indications on
 the ECAM BLEED page...
 PNEUMATIC MENU
 Normal Operation 7/62
 The engine identification numbers
 are displayed amber because the
 engines are not running.
 PNEUMATIC MENU Normal Operation 8/62
 PNEUMATIC MENU
 Normal Operation 9/62
 During preliminary cockpit
 preparation all white lights must be
 extinguished.
 With the ENG BLEED pb sw in the
 lights out position, the bleed valves are
 automatically controlled by the system.
 Observe the symbology on the
 ECAM. The bleed valves are cross-line
 green because they are fully closed.
 PNEUMATIC MENU
 Normal Operation 10/62
 The HP valves are also
 automatically controlled by the
 system. They are displayed crossline
 green to indicate that they are
 fully closed.
 PNEUMATIC MENU
 Normal Operation 11/62
 The bleed temperature is
 displayed in green.
 The bleed pressure is displayed in
 amber because there is no pressure
 supplied.
 PNEUMATIC MENU
 Normal Operation 12/62
 The GND HP connection
 indication is always displayed in
 green when the aircraft is on the
 ground whether the GND unit is
 connected or not.
 PNEUMATIC MENU
 Normal Operation 13/62
 You also have to check that the X
 BLEED selector is in AUTO position.
 Observe the indication on the
 ECAM.
 The X BLEED valve is displayed
 cross-line green because it is
 automatically closed by the system.
 PNEUMATIC MENU
 Normal Operation 14/62
 Since the APU BLEED pb sw is
 selected off, the APU BLEED valve is
 displayed cross-line green,
 indicating that it is closed.
 PNEUMATIC MENU
 Normal Operation 15/62
 The next step during Cockpit
 Preparation is to switch the APU
 BLEED on. We have already started
 the APU for you.
 Swiittcchh APU BLLEED oonn !!
 Note : Do not use APU BLEED if
 GND HP air is connected.
 PNEUMATIC MENU Normal Operation 16/62
 The next step during Cockpit
 Preparation is to switch the APU
 BLEED on. We have already started
 the APU for you.
 Noo,, Prreessss tthhee APU BLLEED ppbb ssw !!
 PNEUMATIC MENU Normal Operation 17/62
 The next step during Cockpit
 Preparation is to switch the APU
 BLEED on. We have already started
 the APU for you.
 Noo,, Prreessss tthhee APU BLLEED ppbb ssw !!
 PNEUMATIC MENU Normal Operation 18/62
 PNEUMATIC MENU Normal Operation 19/62
 PNEUMATIC MENU Normal Operation 20/62
 PNEUMATIC MENU Normal Operation 21/62
 PNEUMATIC MENU
 Normal Operation 22/62
 Observe the indications :
 • the APU BLEED valve is displayed in-line
 green indicating it is now open
 • the left side bleed pressure and temperature
 are displayed in green because they are in normal
 range
 • the X-BLEED valve is automatically opened :
 it is displayed amber during transit and in-line
 green when fully open
 • the right side bleed pressure and temperature
 are displayed in green
 PNEUMATIC MENU
 Normal Operation 23/62
 As you have learned in the APU
 chapter, the memo APU BLEED is
 displayed on the E/WD.
 PNEUMATIC MENU
 Normal Operation 24/62
 The next step is the walk around.
 If ground high pressure air is not
 required, you have to check that the
 high pressure ground connection
 door is closed.
 PNEUMATIC MENU
 Normal Operation 25/62
 Usually, APU bleed air is used for
 engine start.
 The pressure displayed on the BLEED
 page is also indicated on the ECAM
 ENGINE page which will be explained in
 the ENGINE chapter.
 PNEUMATIC MENU
 Normal Operation 26/62
 Yoouu aarree rreeaaddyy ffoorr eennggiinnee ssttaarrtt..
 To start both engines, click on the
 photograph.
 PNEUMATIC MENU
 Normal Operation 27/62
 Notice that the engine identification
 numbers have turned white indicating
 that the engines are running.
 The engine bleed valves remain closed
 because the APU bleed valve is open and
 the APU has priority over the engine
 bleed.
 Now, you may switch off the APU.
 Swiittcchh APU BLLEED ooffff..
 PNEUMATIC MENU Normal Operation 28/62
 Notice that the engine identification
 numbers have turned white indicating
 that the engines are running.
 The engine bleed valves remain closed
 because the APU bleed valve is open and
 the APU has priority over the engine
 bleed.
 Now, you may switch off the APU.
 Noo.. Prreessss tthhee APU BLLEED ppbb ssw !!
 PNEUMATIC MENU Normal Operation 29/62
 Notice that the engine identification
 numbers have turned white indicating
 that the engines are running.
 The engine bleed valves remain closed
 because the APU bleed valve is open and
 the APU has priority over the engine
 bleed.
 Now, you may switch off the APU.
 Noo.. Prreessss tthhee APU BLLEED ppbb ssw !!
 PNEUMATIC MENU Normal Operation 30/62
 PNEUMATIC MENU Normal Operation 31/62
 PNEUMATIC MENU
 Normal Operation 32/62
 Observe the ECAM :
 • the APU BLEED valve is closed
 • the X-BLEED valve is automatically
 closed. It is displayed amber during
 transit
 • the ENGINE BLEED valves and HP
 valves are displayed in-line green
 because they have been automatically
 opened
 PNEUMATIC MENU
 Normal Operation 33/62
 Weewiillll nnoow sswiittcchh ooffff tthhee APU..
 Clliicckk oonn tthhee APUMASTTER SW..
 PNEUMATIC MENU Normal Operation 34/62
 Weewiillll nnoow sswiittcchh ooffff tthhee APU..
 Noo.. Prreessss oonn tthhee APUMASTTER SW..
 PNEUMATIC MENU Normal Operation 35/62
 Weewiillll nnoow sswiittcchh ooffff tthhee APU..
 Noo.. Prreessss oonn tthhee APUMASTTER SW..
 PNEUMATIC MENU
 Normal Operation 36/62
 With the APU MASTER SW pb in
 OFF position, the APU BLEED VALVE
 is no longer displayed on the ECAM.
 PNEUMATIC MENU
 Normal Operation 37/62
 We will now talk about the changes
 that occur in the pneumatic system
 during take off.
 Note : Normally, the ECAM ENGINE
 page is displayed for take off. For
 training purposes only, we will display the
 ECAM BLEED page.
 PNEUMATIC MENU Normal Operation 38/62
 PNEUMATIC MENU
 Normal Operation 39/62
 As engine thrust is increased, the
 pressure delivered from the IP stages
 is sufficient and the HP valves are
 automatically closed accordingly.
 PNEUMATIC MENU
 Normal Operation 40/62
 As soon as the aircraft lifts off, the
 GND HP connection indication
 disappears.
 Remember that it is only displayed
 on the ground.
 PNEUMATIC MENU
 Normal Operation 41/62
 During flight you might need to
 switch on the wing anti ice system,
 which uses hot bleed air from the
 pneumatic system.
 Observe the indication on the
 ECAM BLEED page when wing anti
 ice is used.
 (For further information, refer to
 the ICE AND RAIN PROTECTION
 chapter.)
 PNEUMATIC MENU
 Normal Operation 42/62
 Let's now see what happens in the
 pneumatic system when you are back
 on the ground...
 PNEUMATIC MENU Normal Operation 43/62
 PNEUMATIC MENU Normal Operation 44/62
 PNEUMATIC MENU
 Normal Operation 45/62
 • the GND HP air connection
 indication is displayed
 • with the engines at idle, the HP
 VALVES are automatically opened
 • when the APU is started, the APU
 BLEED VALVE is displayed
 PNEUMATIC MENU
 Normal Operation 46/62
 Just before engine shutdown we
 select the APU BLEED on.
 Observe the indications on the
 ECAM.
 Seelleecctt APU BLLEED ON !!
 PNEUMATIC MENU Normal Operation 47/62
 Just before engine shutdown we
 select the APU BLEED on.
 Observe the indications on the
 ECAM.
 Noo.. Prreessss tthhee APU BLLEED ppbb ssw ttoo ON !!
 PNEUMATIC MENU Normal Operation 48/62
 Just before engine shutdown we
 select the APU BLEED on.
 Observe the indications on the
 ECAM.
 Noo.. Prreessss tthhee APU BLLEED ppbb ssw ttoo ON !!
 PNEUMATIC MENU Normal Operation 49/62
 PNEUMATIC MENU Normal Operation 50/62
 PNEUMATIC MENU
 Normal Operation 51/62
 • the APU BLEED valve opens
 • the ENGINE BLEED and HP valves
 are automatically closed because APU
 bleed air has priority
 • the X BLEED valve automatically
 opens in order to let the APU supply
 both sides of the pneumatic system
 PNEUMATIC MENU
 Normal Operation 52/62
 IItt’’ss nnoow ttiimee ttoo sshhuutt ooffff tthhee eennggiinneess..
 Click on the engine photograph to
 shut off both engines.
 PNEUMATIC MENU
 Normal Operation 53/62
 Observe the engine identification
 numbers turning amber because the
 engines are not running.
 Before leaving the aircraft we will shut
 down the APU. But first, we must switch
 off the APU BLEED.
 Swiittcchh APU BLLEEDOFFFF..
 PNEUMATIC MENU Normal Operation 54/62
 Observe the engine identification
 numbers turning amber because the
 engines are not running.
 Before leaving the aircraft we will shut
 down the APU. But first, we must switch
 off the APU BLEED.
 Noo.. Prreessss tthhee APU BLLEED ppbb ssw ttoo OFFFF..
 PNEUMATIC MENU Normal Operation 55/62
 Observe the engine identification
 numbers turning amber because the
 engines are not running.
 Before leaving the aircraft we will shut
 down the APU. But first, we must switch
 off the APU BLEED.
 Noo.. Prreessss tthhee APU BLLEED ppbb ssw ttoo OFFFF..
 PNEUMATIC MENU Normal Operation 56/62
 PNEUMATIC MENU Normal Operation 57/62
 PNEUMATIC MENU
 Normal Operation 58/62
 Observe the indications :
 • the X-BLEED VALVE is automatically
 closed
 • the APU BLEED VALVE is closed
 • the bleed pressure is displayed amber
 because there is no pressure supplied
 PNEUMATIC MENU Normal Operation 59/62
 PNEUMATIC MENU
 Normal Operation 60/62
 When the APU has shut down, the
 APU BLEED VALVE is no longer
 displayed.
 This completes the normal operation
 of the pneumatic system. We will now
 discuss the indications associated with
 GND HP air supply.
 Clliicckk oonn tthhee ffoorrwaarrdd aarrrroow......
 PNEUMATIC MENU
 Normal Operation 61/62
 If the APU should be inoperative for
 bleed air supply, a GND HP air unit can
 be connected to provide pneumatic
 pressure for engine start.
 The GND unit’s pressure and
 temperature are indicated on the ECAM.
 PNEUMATIC MENU Normal Operation 62/62
 Notice that in this case the X bleed
 valve remains closed with the X BLEED
 selector in AUTO position. In order to
 start engine 2 first, you have to set the X
 BLEED selector manually to OPEN.
 This is done according to a procedure
 in your flight manual.
 This concludes the PNEUMATIC
 Normal Operation module. Why don’t you
 have a coffee before going on ?
 Module
 completed !
 NEXT
 PNEUMATIC MENU Normal Operation 63/62
 EXIT
 AUDIO GLOSSARY FCOM
 RETURN
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 PPRREELLIIMMIINNAARRYYCCOOCCKKPPIITTPPRREEPPAARRAATTIIOONN
 CCOOCCKKPPIITTPPRREEPPAARRAATTIIOONN((AAPPUUBBLLEEEEDDOONN))
 EENNGGIINNEESSTTAARRTT
 WWAALLKKAARROOUUNNDD
 TTAAKKEEOOFFFF
 AAFFTTEERRLLAANNDDIINNGG
 EENNGGIINNEESSHHUUTTDDOOWWNN
 UUSSEEOOFFGGNNDDHHPPAAIIRR
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