-
the warning, APU EMER SHUT DOWN MASTER SW .... OFF comes on.
On the glareshield panels 130VU and 131VU:
-
the MASTER CAUT lights come on.
-a single chime is heard. 
On the overhead panel 25VU: 
-
the FAULT legend in the pushbutton APU MASTER SW 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 overhead panel 25VU:
-
the FAULT legend in the APU MASTER SW pushbutton switch goes off.
On the ECAM upper display unit:
-
the warning, APU EMER SHUT DOWN MASTER SW .... OFF goes off.
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R R R  
R R R  20. On the overhead panel 25VU: - release the APU MASTER SW pushbutton switch.  
R R R R  21. On the overhead panel 25VU: - push the APU MASTER SW pushbutton switch to the ON position.  
R R R R  
R R R  22. On the APU FIRE panel 20VU: - lift the guard and release the APU FIRE pushbutton switch.  
R R R R R  
R R R R  
R R R  
R R R R  
R  23. On the APU FIRE panel 20VU: 
On the glareshield panels 130VU and 131VU: 
-
the MASTER CAUT lights go off.
On the overhead panel 25VU:
-
the ON legend in the APU MASTER SW pushbutton switch goes off.
On the overhead panel 25VU:
-
the ON legend in the APU MASTER SW pushbutton switch comes on.
On the FUEL page of the ECAM lower display unit:
-
the APU LP fuel-valve symbol is shown in the open position.
On the APU FIRE panel 20VU:
-
the SQUIB legend in the AGENT pushbutton switch comes on.
On the ECAM upper display unit:
-
the warning, APU EMER SHUT DOWN MASTER SW .... OFF comes on.
On the glareshield panels 130VU and 131VU:
-
the MASTER CAUT lights come on,
-a single chime is heard. 
On the overhead panel 25VU: 
-
the FAULT legend in the pushbutton APU MASTER SW 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 APU FIRE panel 20VU: 
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 -------------------------------------------------------------------------------
ACTION RESULT -------------------------------------------------------------------------------
R  - push the APU FIRE pushbutton  - the SQUIB legend in the AGENT  
R  switch and close the guard.  pushbutton switch goes off.  
R  On the ECAM upper display unit:  
R  - the warning,  
R  APU EMER SHUT DOWN  
R  MASTER SW .... OFF  
R  goes off.  
R  On the overhead panel 25VU:  
R  - the FAULT legend in the APU MASTER SW  
R  pushbutton switch goes off.  
R  On the glareshield panels 130VU and  
R  131VU:  
R  - the MASTER CAUT lights go off.  
R  24. On the overhead panel 25VU:  On the overhead panel 25VU:  
R  - release the APU MASTER SW  - the ON legend in the APU MASTER SW  
R  pushbutton switch.  pushbutton switch goes off.  
R  **ON A/C ALL 
 5. Close-up________ 
 Subtask 26-22-00-860-053
 A. Put the aircraft back to its initial configuration.
 (1)
 Remove the safety clip(s) and the tag(s) and close this(these) circuit breaker(s): 3QC.
 (2)
 Do the EIS stop procedure
 (Ref. TASK 31-60-00-860-002).
 (3)
 De-energize the aircraft electrical circuits
 (Ref. TASK 24-41-00-862-002).
 TASK 26-22-00-720-001
 Continuity Check of the APU Fire-Extinguishing Firing-Circuit WARNING : THE ACCIDENTAL FIRING OF THE EXTINGUISHER BOTTLE CAN CAUSE SERIOUS
_______ INJURY TO PERSONS WHO WORK OR ARE IN THE CLOSE PROXIMITY.
 1. Reason for the Job
__________________
 Refer to the MPD TASK: 262200-03
 2. Job Set-up Information
______________________
 A. Fixtures, Tools, Test and Support Equipment
 -------------------------------------------------------------------------------REFERENCE QTY DESIGNATION -------------------------------------------------------------------------------
No specific circuit breaker(s) safety clip(s)
 
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