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TASK 26-12-00-710-002-A

Operational Test of the Engine Fire and Overheat Detection with the Centralized Fault Display System (CFDS)


TASK 26-12-00-710-002-A
Operational Test of the Engine Fire and Overheat Detection with the Centralized Fault Display System (CFDS)
1. Reason for the Job
Self explanatory
2. Job Set-up Information
A. Referenced Information
REFERENCE DESIGNATION
24-41-00-861-002-A Energize the Aircraft Electrical Circuits from the External Power
24-41-00-861-002-A-01 Energize the Aircraft Electrical Circuits from the APU
24-41-00-861-002-A-02 Energize the Aircraft Electrical Circuits from Engine 1(2)
24-41-00-862-002-A De-energize the Aircraft Electrical Circuits Supplied from the External Power
24-41-00-862-002-A-01 De-energize the Aircraft Electrical Circuits Supplied from the APU
24-41-00-862-002-A-02 De-energize the Aircraft Electrical Circuits Supplied from the Engine 1(2)
31-32-00-860-005-A Procedure to Get Access to the SYSTEM REPORT/TEST FIRE PROT Page
3. Job Set-up
Subtask 26-12-00-861-051-A
A. Energize the Aircraft Electrical Circuits (Ref. TASK 24-41-00-861-002-A) or (Ref. TASK 24-41-00-861-002-
A-01) or (Ref. TASK 24-41-00-861-002-A-02).
Subtask 26-12-00-869-050-A
B. On the ENG panel 115VU, make sure that ENG MASTER switches are at OFF.
Subtask 26-12-00-865-051-A
C. Make sure that this(these) circuit breaker(s) is(are) closed:
PANEL DESIGNATION FIN LOCATION
49VU ENGINE/2/FIRE DET/LOOP B 8WD2 A07
49VU ENGINE/1/FIRE DET/LOOP A 7WD1 A06
121VU ENGINE/ENG2/FIRE DET/LOOP A 7WD2 Q39
121VU ENGINE/ENG1/FIRE DET/LOOP B 8WD1 Q38
4. Procedure
** On A/C 801-850
Subtask 26-12-00-710-051-A
A. Operational Test of the Engine Fire and Overheat Detection with the CFDS
(1) On one Multipurpose Control and Display Unit (MCDU), get the SYSTEM REPORT/TEST/FIRE
PROT page (Ref. TASK 31-32-00-860-005-A).
(2) Do this test:
ACTION RESULT
1.On the MCDU: On the MCDU:
. push the line key adjacent to the FDU 1(2) indication. . the FDU 1(2) page comes into view.

ACTION RESULT
. push the line key adjacent to the TEST indication. On the FDU 1(2) page:
. the TEST WAIT message comes into view for 60
seconds then goes out of view, and these messages
come into view (P/N given for example only):
TEST OK
P/N 7304 01 02
END OF TEST
NOTE : Ignore other indications.
** On A/C 601-605 609-653 656-800 851-900
Subtask 26-12-00-710-051-B
A. Operational Test of the Engine Fire and Overheat Detection with the CFDS
(1) On one Multipurpose Control and Display Unit (MCDU), get the SYSTEM REPORT/TEST/FIRE
PROT page (Ref. TASK 31-32-00-860-005-A).
(2) Do this test:
ACTION RESULT
1.On the MCDU: On the MCDU:
. push the line key adjacent to the FDU 1(2) indication. . the FDU 1(2) page comes into view.
. push the line key adjacent to the TEST indication. On the FDU 1(2) page:
. the TEST IN PROGRESS indication comes into view
for 90 seconds then goes out of view.
The TEST OK indication comes into view.
5. Close-up
Aircraft Maintenance Manual XF rev.40 2012
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