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and autothrust are engaged.
Let’s first review the ECAM ELEC page.
Caallll tthhee ECAMELLEC ppaaggee..
ELECTRICAL MENU Abnormal operation (B) 3/34
Noo,, pprreessss tthhee ELLEC kkeeyy..
In this module we will look at an AC BUS 1 fault.
Assume we are in flight, with no previous faults. Autopilot 1
and autothrust are engaged.
Let’s first review the ECAM ELEC page.
ELECTRICAL MENU Abnormal operation (B) 4/34
Noo,, pprreessss tthhee ELLEC kkeeyy..
In this module we will look at an AC BUS 1 fault.
Assume we are in flight, with no previous faults. Autopilot 1
and autothrust are engaged.
Let’s first review the ECAM ELEC page.
ELECTRICAL MENU Abnormal operation (B) 5/34
As you already know, AC bus 1 is
normally supplying:
• AC ESS bus and
• DC bus 1 which in turn feeds DC ESS
bus.
ELECTRICAL MENU Abnormal operation (B) 6/34
IIff yyoouu lloooossee AC bbuuss 11,, tthheessee ssaamee bbuusseesswiillll bbee lloosstt..
The essential buses can be recovered using the AC ESS
FEED pb sw.
We will demonstrate this point.
Clliicckk oonn tthhee ffoorrwaarrdd aarrrroow ttoo aaccttiivvaattee tthhee ffaaiilluurree..
ELECTRICAL MENU
Abnormal operation (B) 7/34
As you notice, the first consequence is that the Captain’s
PFD, ND and E/WD are blank.
The SOP recommend, in such a case, that the First Officer
should fly the aircraft while the Captain does the ECAM action.
ELECTRICAL MENU Abnormal operation (B) 8/34
ELECTRICAL MENU Abnormal operation (B) 9/34
You hear the continuous chime and see both warning lights
on.
No, to extinguish the Master Warning
light, push on the Master Warning pb sw
ELECTRICAL MENU Abnormal operation (B) 10/34
You hear the continuous chime and see both warning lights
on.
No, to extinguish the Master Warning
light, push on the Master Warning pb sw
ELECTRICAL MENU Abnormal operation (B) 11/34
ELECTRICAL MENU Abnormal operation (B) 12/34
TThheeMaasstteerrWaarrnniinngg lliigghhtt iiss eexxttiinngguuiisshheedd..
No, to extinguish the Master Caution
light, push on the Master Caution pb sw
ELECTRICAL MENU Abnormal operation (B) 13/34
TThheeMaasstteerrWaarrnniinngg lliigghhtt iiss eexxttiinngguuiisshheedd..
No, to extinguish the Master Caution
light, push on the Master Caution pb sw
ELECTRICAL MENU Abnormal operation (B) 14/34
ELECTRICAL MENU
Abnormal operation (B) 15/34
The E/WD is now displayed on the lower ECAM.
You can read that the autopilot has disengaged.
Let’s deal with this, first.
To continue the procedure, you have to clear this
line.
Clleeaarr AUTTO FFLLTT..
ELECTRICAL MENU Abnormal operation (B) 16/34
The E/WD is now displayed on the lower ECAM.
You can read that the autopilot has disengaged.
Let’s deal with this, first.
To continue the procedure, you have to clear this
line.
Noo,, pprreessss eeiitthheerr CLLR kkeeyy..
ELECTRICAL MENU Abnormal operation (B) 17/34
The E/WD is now displayed on the lower ECAM.
You can read that the autopilot has disengaged.
Let’s deal with this, first.
To continue the procedure, you have to clear this
line.
Noo,, pprreessss eeiitthheerr CLLR kkeeyy..
ELECTRICAL MENU
Abnormal operation (B) 18/34
The line concerning the autopilot has
disappeared.
We can also see that the AC bus 1 fault has led
to AC and DC ESS bus failures.
ELECTRICAL MENU
Abnormal operation (B) 19/34
The first line in the procedure shows us how to
recover the essential buses. You will have to
switch the “feed” of AC ESS bus from AC bus 1 to
AC bus 2.
The PF will ask you to perform the ECAM
actions.
ELECTRICAL MENU
Abnormal operation (B) 20/34
Notice on the ELEC panel, the FAULT light on the
AC ESS FEED pb sw.
Peerrffoorrm ECAMaaccttiioonn..
ELECTRICAL MENU Abnormal operation (B) 21/34
Noo,, pprreessss tthhee AC ESS FFEED ppbb ssw..
Notice on the ELEC panel, the FAULT light on the
AC ESS FEED pb sw.
ELECTRICAL MENU Abnormal operation (B) 22/34
Noo,, pprreessss tthhee AC ESS FFEED ppbb ssw..
Notice on the ELEC panel, the FAULT light on the
AC ESS FEED pb sw.
ELECTRICAL MENU
Abnormal operation (B) 23/34
The Captain’s PFD and ND are recovered after a
few seconds. The E/WD is back on the upper ECAM.
The ECAM ELEC page is automatically displayed
on the lower ECAM.
ELECTRICAL MENU
Abnormal operation (B) 24/34
You can see on the ECAM ELEC page that both
essential buses are now recovered.
For that, AC bus 2 is now supplying the AC ESS
　
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