You signed in with another tab or window. Reload to refresh your session.You signed out in another tab or window. Reload to refresh your session.You switched accounts on another tab or window. Reload to refresh your session.Dismiss alert
The fuel system stores fuel, monitors the quantity and temperature of fuel in each tank, and controls
21
+
fuel transfers to:
22
+
23
+
- Supply fuel to the engines and to the Auxiliary Power Unit (APU)
24
+
- Maintain the Center of Gravity (CG) within limits
25
+
- Reduce structural loads
26
+
- Control refueling and defueling
27
+
- Enable fuel jettison, if necessary.
28
+
29
+
## Usage
30
+
31
+
### FEED TK 1(2)(3)(4) MAIN pb-sw
32
+
33
+
- AUTO:
34
+
- The main pump is running.
35
+
- OFF:
36
+
- The main pump is off.
37
+
- FAULT:
38
+
- The main pump is running at low pressure or is failed.
39
+
- Associated with one of the following ECAM cautions:
40
+
- FUEL FEED TK 1(2)(3)(4) MAIN PMP FAULT
41
+
- FUEL FEED TK 1(2)(3)(4) MAIN + STBY PMP FAULT
42
+
- FUEL L(R) WING FEED PMPs FAULT.
43
+
- The FAULT light goes off, when the flight crew sets the FEED TK 1(2)(3)(4) MAIN pb-sw to OFF.
44
+
45
+
### FEED TK 1(2)(3)(4) STBY pb-sw
46
+
47
+
- AUTO:
48
+
- The standby pump runs automatically, when the associated main pump is failed, or is off.
49
+
- OFF:
50
+
- The standby pump is off.
51
+
- FAULT:
52
+
- The standby pump is running at low pressure or is failed.
53
+
- Associated with one of the following ECAM alerts:
54
+
- FUEL FEED TK 1(2)(3)(4) STBY PMP FAULT
55
+
- FUEL FEED TK 1(2)(3)(4) MAIN + STBY PMP FAULT
56
+
- FUEL L(R) WING FEED PMPs FAULT.
57
+
- The FAULT light goes off, when the flight crew sets the FEED TK 1(2)(3)(4) STBY pb-sw to OFF.
58
+
59
+
### L(R) INR(MID)(OUTR) TK FWD pb-sw
60
+
61
+
- AUTO:
62
+
- The transfer pump runs, if necessary:
63
+
- For an automatic fuel transfer from the inner, mid, or outer tanks, via the forward gallery, or
64
+
- For a manual transfer from the outer tanks, via the forward gallery (except if any outer tank pump has been switched off), or
65
+
- During jettison.
66
+
- OFF:
67
+
- The transfer pump is off.
68
+
- FAULT:
69
+
- Comes on:
70
+
- When the transfer pump is failed, or is abnormally on
71
+
- Associated with one of the following ECAM alerts:
72
+
- FUEL L(R) INR FWD PMP FAULT
73
+
- FUEL L(R) INR FWD+AFT PMPs FAULT
74
+
- FUEL L(R) MID FWD PMP FAULT
75
+
- FUEL L(R) MID FWD+AFT PMPs FAULT
76
+
- FUEL L(R) OUTR PMP FAULT.
77
+
- Or, when the transfer pump must be turned off to allow a manual gravity transfer:
78
+
- Associated with the following ECAM alert:
79
+
- FUEL OUTR TK XFR FAULT
80
+
- The FAULT light goes off, when the flight crew sets the L(R) INR(MID)(OUTR) TK FWD pb-sw to OFF.
81
+
82
+
### L(R) MID(INR) TK AFT pb-sw
83
+
84
+
- ON:
85
+
- The transfer pump runs, if necessary:
86
+
- For an automatic or manual fuel transfer from the inner, or mid tanks, via the aft gallery, or
87
+
- During jettison.
88
+
- OFF:
89
+
- The transfer pump is off.
90
+
- FAULT:
91
+
- The transfer pump is failed, or is abnormally on, or a low pressure is detected during a manual transfer.
92
+
- Associated with one of the following ECAM alerts:
93
+
- FUEL L(R) INR AFT PMP FAULT (Refer to procedure)
94
+
- FUEL L(R) INR FWD+AFT PMPs FAULT (Refer to procedure)
95
+
- FUEL L(R) MID AFT PMP FAULT (Refer to procedure)
96
+
- FUEL L(R) MID FWD+AFT PMPs FAULT (Refer to procedure)
97
+
- The FAULT light goes off, when the flight crew sets the L(R) MID(INR) TK AFT pb-sw to OFF.
98
+
99
+
### TRIM TK L(R) pb-sw
100
+
101
+
- ON:
102
+
- The transfer pump runs, if necessary:
103
+
- For an automatic or manual fuel transfer, or
104
+
- During jettison.
105
+
- OFF:
106
+
- The transfer pump is off.
107
+
- FAULT:
108
+
- Comes on:
109
+
- When the transfer pump is failed, or is abnormally on, or a low pressure is detected during a manual transfer
110
+
- Associated with one of the following ECAM alerts:
111
+
- FUEL TRIM TK L(R) PMP FAULT (Refer to procedure)
112
+
- FUEL TRIM TK L+R PMPs FAULT (Refer to procedure)
113
+
- FUEL TRIM TK XFR FAULT (Refer to procedure)
114
+
- Or, when the trim line is damaged and all trim tank transfers must be inhibited.
115
+
- Associated with the following ECAM alert:
116
+
- FUEL TRIM & APU LINES FAULT (Refer to procedure)
117
+
- The FAULT light goes off, when the flight crew sets the TRIM TK L(R) pb-sw to OFF.
118
+
119
+
### INR(MID)(OUTR) TK XFR pb-sw
120
+
121
+
- AUTO:
122
+
- Automatic fuel transfers from the inner (mid)(outer) tanks are available.
123
+
- For more information: Refer to Fuel Transfer Sequence
124
+
- MAN:
125
+
- Fuel manually transfers from the inner (mid)(outer) tanks to the feed tanks.
126
+
- FAULT:
127
+
- Comes on:
128
+
- When automatic fuel transfers from the affected tanks are no longer possible.
129
+
- Associated with one of the following ECAM alerts:
130
+
- FUEL MAN XFR PROCEDURE
131
+
- FUEL OUTR TK XFR FAULT
132
+
- Or, when a low level is detected in one or more of the feed tanks.
133
+
- Associated with the following ECAM alerts:
134
+
- FUEL FEED TK 1(2)(3)(4) LEVEL LO
135
+
- FUEL FEED TKs 1+2(3+4) LEVEL LO
136
+
- FUEL ALL FEED TKs LEVEL LO
137
+
- Or, (for the OUTR TK XFR pb-sw only) when a low fuel temperature is detected in the outer tanks.
138
+
- Associated with the following ECAM alert:
139
+
- FUEL TEMP LO
140
+
- The FAULT light goes off, when the flight crew sets the INR(MID)(OUTR) TK XFR pb-sw to MAN.
141
+
142
+
### TRIM TK XFR pb-sw
143
+
144
+
- AUTO:
145
+
- Automatic fuel transfers from the trim tank are available.
146
+
- For more information: Refer to Fuel Transfer Sequence
147
+
- MAN:
148
+
- Fuel manually transfers from the trim tank to the inner tanks.
149
+
- FAULT:
150
+
- Comes on:
151
+
- When an excessive aft CG is detected
152
+
- The Weight and Balance Backup Computer (WBBC) monitors the CG.
153
+
- Associated with the following ECAM alert:
154
+
- FUEL EXCESS AFT CG
155
+
- Or, when the CG has been previously detected at the forward limit, and the trim tank transfer can resume
156
+
- Associated with the following ECAM alert:
157
+
- FUEL CG AT FWD LIMIT
158
+
- Or, when a manual trim tank transfer is required
159
+
- Associated with the following ECAM alert:
160
+
- FUEL TRIM XFR FAULT
161
+
- FUEL MAN XFR PROCEDURE
162
+
- Or, when a low fuel temperature is detected in the trim tank
163
+
- Associated with the following ECAM alert:
164
+
- FUEL TEMP LO
165
+
- Or, when there is a low level of fuel in any feed tank, and there is still some fuel in the trim tank
166
+
- Associated with one of the following ECAM alerts:
167
+
- FUEL FEED TK 1(2)(3)(4) LEVEL LO
168
+
- FUEL FEED TKs 1+2 (3+4) LEVEL LO
169
+
- FUEL ALL FEED TKs LEVEL LO
170
+
- Or, when an overflow of the trim tank is detected.
171
+
- Associated with the following ECAM alert:
172
+
- FUEL TRIM TK OVERFLOW
173
+
- The FAULT light goes off, when the flight crew sets the TRIM TK XFR pb-sw to MAN.
174
+
175
+
### TRIM TK FEED SELECTOR
176
+
177
+
- AUTO:
178
+
- The trim tank transfers are automatic.
179
+
- ISOL:
180
+
- The trim tank forward transfer stops and the trim tank transfer line is isolated.
181
+
- The following valves close to isolate the transfer line:
182
+
- The trim tank isolation valve
183
+
- The trim tank inlet valves
184
+
- The trim pipe isolation valves.
185
+
- OPEN:
186
+
- The following valves open, to allow gravity transfer from the trim tank to the inner tanks:
187
+
- Trim tank inlet valves
188
+
- Trim pipe isolation valve connected to the aft gallery
189
+
- Inner tank aft inlet valves.
190
+
191
+
### CROSSFEED 1(2)(3)(4) pb-sw
192
+
193
+
- AUTO:
194
+
- All crossfeed valves automatically open:
195
+
- In electrical emergency configuration, while the slats are retracted, or
196
+
- If required for an automatic ground transfer.
197
+
- ON and OPEN:
198
+
- The CROSSFEED 1(2)(3)(4) pb-sw is set to ON and the crossfeed valve is open.
199
+
- ON:
200
+
- The CROSSFEED 1(2)(3)(4) pb-sw is set to ON and the crossfeed valve remains closed.
201
+
- Associated with the following ECAM alert:
202
+
- FUEL CROSSFEED VLV 1(2)(3)(4) FAULT (Refer to procedure).
203
+
- The OPEN/ON lights go off, when the flight crew deselects the CROSSFEED 1(2)(3)(4) pb-sw.
204
+
- OPEN:
205
+
- The CROSSFEED 1(2)(3)(4) pb-sw is deselected and the crossfeed valve is open.
206
+
- If the crossfeed valve is abnormally open, this is associated with the following ECAM alert:
207
+
- FUEL CROSSFEED VLV 1(2)(3)(4) FAULT (Refer to procedure).
208
+
- If the crossfeed valve is automatically commanded open (automatic ground transfer or electrical emergency configuration), there is no associated alert.
0 commit comments