R  121VU APU/FIRE/EXTIG/SQUIB/B 2WF L39 
R  121VU APU/FIRE/EXTIG/SQUIB/A 1WF L38 121VU APU/FIRE/LP VALVE/NORM 4WF M42 121VU APU/FIRE/LP VALVE/STBY 3WF M41 121VU APU/FUEL/LP VALVE/CTL 1QF M40 121VU APU/FUEL/LP VALVE/SPLY 2QF M39 121VU EIS/HORN/SPLY 2WC P09
 4. Procedure
_________ R **ON A/C 001-049, 063-099, 101-149, 151-199, 201-299, 301-399, 401-499,
 Subtask 26-22-00-710-053-B
 A. Test
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1. In the INT LT section of the overhead panel 25VU: 
-put the ANN LT switch in the TEST position.
 2. In the INT LT section of the overhead panel 25VU: 
-put the ANN LT switch in the BRT position.
 3.
 On the circuit breaker panel 121VU: - open the circuit breaker
APU/FUEL/LP VALVE/CTL 1QF.
 4.
 On the overhead panel 25VU:
-push the APU MASTER SW 
pushbutton switch.
5.
 On the ECAM control panel:
-push the FUEL pushbutton 
switch.
 6.
 In the APU/AUTO EXTING section of panel 50VU:
-push the TEST pushbutton 
switch.
In the cockpit:
-all annunciator lights come on fullybright.
In the cockpit:
-the applicable annunciator lights gooff.
On the overhead panel 25VU:
-
the ON legend in the APU MASTER SWpushbutton switch comes on.
On the ECAM lower display unit:
-
the FUEL page comes into view.
On the FUEL page of the ECAM lower display unit:
 -
the APU LP fuel-valve symbol is shown in the open position.
In the APU/AUTO EXTING section of thepanel 50VU:
-
the ON legend in the TEST pushbuttonswitch comes on,
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ACTION RESULT -------------------------------------------------------------------------------
-
the OK legend in the TEST pushbutton switch comes on after approximately three seconds.
On the APU FIRE panel 20VU:
 -
the APU FIRE light in the APU FIRE pushbutton switch comes on.
On the overhead panel 25VU:
 -
the FAULT legend in the APU MASTER SW pushbutton switch comes on.
On the glareshield panels 130VU and 131VU:
 -
the MASTER CAUT lights come on,
 -a single chime is heard.
 On the ECAM upper display unit:
 -
the warning, APU EMER SHUT DOWN MASTER SW....OFF comes on.
On the FUEL page of the ECAM lower display unit:
 -
the APU LP fuel-valve symbol is shown in the closed position.
On the external power control panel 108VU:
 -
the APU FIRE light comes on,
 -
the ground warning horn is heard.
 NOTE : When the ground warning horn is
____ heard, you can switch it off when you open the circuit breaker EIS/HORN/SPLY 2WC. This avoids that the ground warning horn sounds unnecessarily.
 7. In the APU/AUTO EXTING section of  In the APU/AUTO EXTING section of the panel 50VU: panel 50VU:
 -push the RESET pushbutton  - the ON legend in the TEST pushbutton switch. switch goes off, 
R 1EFF : 001-049, 063-099, 101-149, 151-199, 1 26-22-00Page 507 1201-299, 301-399, 401-499, 1Aug 01/05 1 1 1CES 1
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ACTION RESULT -------------------------------------------------------------------------------
8. On the overhead panel 25VU: 
-release the APU MASTER SW 
pushbutton switch.
9. On the glareshield panel 130VU or 131VU: 
-push the MASTER CAUT pushbutton switch.
 10. On the overhead panel 25VU: 
-push the APU MASTER SW twice (on/off) to reset the ECB (59KD). 
11. On the circuit breaker panel 121VU:
 -close the circuit breaker APU/FUEL/LP VALVE/CTL 1QF,
 - open the circuit breaker APU/FUEL/LP VALVE/SPLY 2QF.
 12. On the overhead panel 25VU: 
-
the OK legend in the TEST pushbutton switch goes off.
On the APU FIRE panel 20VU:
 -
the APU FIRE light in the APU FIRE pushbutton switch goes off.
On the external power control panel 108VU:
 -
the APU FIRE light goes off,
 -
the ground warning horn goes off (if the circuit breaker 2WC was not opened).
On the overhead panel 25VU:
-
the FAULT legend in the APU MASTER SWpushbutton switch goes off.
 -
the ON legend in the APU MASTER SW pushbutton switch goes off.