W DOC AIRBUS | AMM A320F

Installation of the Core Fire Detector Channel A Wire Harness [CFMI]

TASK 71-52-43-400-001-A
Installation of the Core Fire Detector Channel A Wire Harness

WARNING: BE CAREFUL WHEN YOU USE CONSUMABLE MATERIALS. OBEY THE MATERIAL MANUFACTURER'S INSTRUCTIONS AND YOUR LOCAL REGULATIONS.
FIN: 1000EM1 ** ON A/C NOT FOR ALL
FIN: 1000EM2 ** ON A/C NOT FOR ALL
1. Reason for the Job
Self explanatory
2. Job Set-up Information
 A. Fixtures, Tools, Test and Support Equipment
REFERENCE
QTY
DESIGNATION
No specific
AR
ACCESS PLATFORM 2M (6 FT) - ADJUSTABLE
No specific
AR
WARNING NOTICE(S)
No specific
Torque wrench: range to between 10 and 8 lbf.in (0.11 and 0.09 m.daN ) T
No specific
Torque wrench: range to between 25 and 20 lbf.in (0.28 and 0.23 m.daN ) T
No specific
Torque wrench: range to between 30 and 25 lbf.in (0.34 and 0.28 m.daN ) T
 B. Consumable Materials
REFERENCE
DESIGNATION
(Material No.CP2208)
fiberglass adhesive tape
(Material No.CP8001)
lockwire 0.032 in. (0.8 mm) dia.
(Material No.CP8002)
lockwire 0.032 in. (0.8 mm) dia
(Material No.08BAA9)
Non Aqueous Cleaner-General - -
(Material No.14SBA1)
Textile-Lint free Cotton -
 C. Work Zones and Access Panels
ZONE/ACCESS
ZONE DESCRIPTION
FOR [1000EM1] (ENGINE-1)
437AL, 438AR, 451AL, 452AR, 461AL, 462AR
FOR [1000EM2] (ENGINE-2)
447AL, 448AR, 461AL, 462AR
 D. Referenced Information
REFERENCE
DESIGNATION
TASK 24-41-00-861-002-A
Energize the Aircraft Electrical Circuits from the External Power
TASK 24-41-00-861-002-A-01
Energize the Aircraft Electrical Circuits from the APU
TASK 24-41-00-861-002-A-02
Energize the Aircraft Electrical Circuits from Engine 1(2)
TASK 24-41-00-862-002-A
De-energize the Aircraft Electrical Circuits Supplied from the External Power
TASK 24-41-00-862-002-A-01
De-energize the Aircraft Electrical Circuits Supplied from the APU
TASK 24-41-00-862-002-A-02
De-energize the Aircraft Electrical Circuits Supplied from the Engine 1(2)
TASK 31-60-00-860-001-A
EIS Start Procedure
TASK 31-60-00-860-002-A
EIS Stop Procedure
TASK 71-13-00-010-040-A
Opening of the Fan Cowl Doors
TASK 71-13-00-410-040-A
Closing of the Fan Cowl Doors
TASK 78-30-00-081-041-A
Make the Thrust Reverser Serviceable after Maintenance
TASK 78-30-00-481-041-A
Make the Thrust Reverser Unserviceable for Maintenance
TASK 78-36-00-010-040-A
Opening of the Thrust Reverser Doors
TASK 78-36-00-410-040-A
Closing of the Thrust Reverser Doors
F Fire Detector Channel A Wire Harness
3. Job Set-up
Subtask 71-52-43-860-064-A ** ON A/C NOT FOR ALL
A. Aircraft Maintenance Configuration
   (1) On the center pedestal, on the ENG panel 115VU, make sure that a WARNING NOTICE(S) is in position to tell persons not to start the engine.
   (2) On the overhead maintenance panel 50VU, make sure that the ON legend of the ENG/FADEC GND PWR/1(2) pushbutton switch is off. Make sure that a WARNING NOTICE(S) is in position to tell persons not to energize the FADEC 1(2).
   (3) Make sure that the ACCESS PLATFORM 2M (6 FT) - ADJUSTABLE is in position.
Subtask 71-52-43-010-072-A ** ON A/C NOT FOR ALL
B. Get Access
   (1) Make sure that the fan cowl doors are open (Ref. AMM TASK 71-13-00-010-040):
     (a) FOR [1000EM1] (ENGINE-1)
437AL 438AR
     (b) FOR [1000EM2] (ENGINE-2)
447AL 448AR
   (2) Make sure that the thrust reverser doors are open (Ref. AMM TASK 78-36-00-010-040):
     (a) FOR [1000EM1] (ENGINE-1)
451AL 452AR
     (b) FOR [1000EM1] (ENGINE-1)
461AL 462AR
Subtask 71-52-43-040-064-A ** ON A/C NOT FOR ALL
C. Make sure that the thrust reverser is unserviceable (Ref. AMM TASK 78-30-00-481-041).
Subtask 71-52-43-865-070-A ** ON A/C NOT FOR ALL
D. Make sure that this(these) circuit breaker(s) is(are) open, safetied and tagged:
PANELDESIGNATIONFINLOCATION
** ON A/C NOT FOR ALL
49VUENGINE/2/FIRE DET/LOOP B8WD2A07
49VUENGINE/1/FIRE DET/LOOP A7WD1A06
49VUENGINE/2/FADEC A/AND EIU 22KS2A05
49VUENGINE/1/FADEC A/AND EIU 12KS1A04
49VUENGINE/1 AND 2/IGN/SYS A1JHA03
49VUANTI ICE/PROBES/AOA/14DA1D04
49VUANTI ICE/PROBES/PHC/12DA1D03
49VUANTI ICE/PROBES/PITOT/13DA1D02
49VUCOM/CVR/SPLY2RKE14
49VUCOM/CVR/CTL4RKE13
49VUNAV PROBES/ADIRU 1/AND AOA 1/26VAC5FP1F07
49VUNAV PROBES/ADIRU1/115VAC4FP1F06
105VUADIRS/ADIRU1/28VDC6FP1C02
121VURCDR/DFDR7TUK16
121VUENGINE/ENG2/OIL/PRESS2EN2N42
121VUENGINE/ENG2/OIL/QTY1EN2N41
121VUENGINE/ENG1/OIL/PRESS2EN1N40
121VUENGINE/ENG1/OIL/QTY1EN1N39
121VUADIRS/ADIRU/2/26VAC AND AOA5FP2N08
121VUADIRS/ADIRU/3/26VAC AND AOA5FP3N07
121VUADIRS/ADIRU/2/115VAC4FP2N06
121VUADIRS/ADIRU/3/115VAC4FP3N05
121VUADIRS/ADIRU/2/28VDC6FP2N04
121VUADIRS/ADIRU/3/28VDC6FP3N03
121VUENGINE/IGN/ENG2/SYS B3JH2P42
121VUENGINE/IGN/ENG1/SYS B3JH1P41
121VUENGINE/IGN/ENG2/SYS A BAT2JH2P40
121VUENGINE/IGN/ENG1/SYS A BAT2JH1P39
121VUENGINE/ENG1 AND 2 FIRE EXTIG/BTL1/SQUIB/B2WE1Q44
121VUENGINE/ENG1 AND 2 FIRE EXTIG/BTL1/SQUIB/A1WE1Q43
121VUENGINE/ENG1 AND 2 FIRE EXTIG/BTL2/SQUIB/B2WE2Q42
121VUENGINE/ENG1 AND 2 FIRE EXTIG/BTL2/SQUIB/A1WE2Q41
121VUENGINE/ENG2/FADEC B4KS2Q40
121VUENGINE/ENG2/FIRE DET/LOOP A7WD2Q39
121VUENGINE/ENG1/FIRE DET/LOOP B8WD1Q38
121VUENGINE/ENG1/FADEC B/AND EIU 14KS1R41
122VUELEC/GCU/22XU2T27
122VUELEC/GCU/12XU1T26
122VUANTI ICE/WINDOWS/R4DG2W14
122VUANTI ICE/WINDOWS/L4DG1X14
122VUANTI ICE/PROBES/PHC/32DA3Y16
122VUANTI ICE/PROBES/2/TAT1DA2Y15
122VUANTI ICE/PROBES/2/PITOT3DA2Y14
122VUANTI ICE/PROBES/2/AOA4DA2Y13
122VUANTI ICE/PROBES/PHC/22DA2Y12
122VUANTI ICE/PROBES/2/STATIC5DA2Y11
122VUANTI ICE/PROBES/3/PITOT3DA3Z16
122VUANTI ICE/PROBES/3/AOA4DA3Z15
122VUANTI ICE/PROBES/3/STATIC5DA3Z14
122VUANTI ICE/PROBES/1/STATIC5DA1Z13
122VUANTI ICE/PROBES/1/TAT1DA1Z12
4. Procedure
Subtask 71-52-43-420-059-A ** ON A/C NOT FOR ALL
A. Installation of the Channel A Fire Detector Harness
F Fire Detector Channel A Wire Harness ** ON A/C NOT FOR ALL
NOTE: When using fiberglass clamps on the engine core harnesses, do as follows: Wrap fiberglass adhesive tape (Material No.CP2208) around the harness(es) to make sure that clamps do not move when they are installed. Wrap only the locations where the clamps are being installed.
NOTE: Before you tighten the clamps, adjust the wire harness to get the maximum clearance between the harness and the other structures on the engine. Make sure that the harness will not touch other structures.
   (1) Remove the CAP-BLANKING from each electrical connector and receptacle.
   (2) Put the harness in position on the engine.
   (3) Connect the electrical connector 452VC-A to the core junction box.
   (4) Remove the bolts (5) and put the harness into the the two clamps (10) on the pylon.
   (5) Remove the screw (55) and washer (40), put the harness into the clamp (60). Attach the clamp (60) to the bracket at station 233 with the screw (55) and washer (40).
NOTE: Make sure that the Installation Reference Markers are aligned under the clamp. The Installation Reference Markers are fiberglass tape on the harnesses.
   (6) Put the harness into the clamp (30). Attach the clamp (30) to the bracket at station 233 with the screw (15), the lug (20) and the spacer (25).
   (7) Put the two clamps (50) on the harness. Attach the harness to the brackets at station 239 with the screws (35), washers (40) and nuts (45).
   (8) TORQUE the screws (15) and (55) and the nuts (45) to between 25 and 20 lbf.in (0.28 and 0.23 m.daN ) T.
   (9) Attach the wire (85) to terminal A with the nut (80). TORQUE the nut (80) to between 30 and 25 lbf.in (0.34 and 0.28 m.daN ) T.
   (10) Attach the wire (70) to terminal C with the nut (75). TORQUE the nut (75) to between 25 and 20 lbf.in (0.28 and 0.23 m.daN ) T.
   (11) Turn the harness until the index mark is at the top center on the clamp (65). Attach the harness to the fire detector element 4001WD1-A with the screws (95) and the clamp (65).
   (12) TORQUE the screws (95) to between 10 and 8 lbf.in (0.11 and 0.09 m.daN ) T.
   (13) Safety the screws (95) with CP8001lockwire 0.032 in. (0.8 mm) dia. or CP8002lockwire 0.032 in. (0.8 mm) dia.
WARNING: BE CAREFUL WHEN YOU USE CONSUMABLE MATERIALS. OBEY THE MATERIAL MANUFACTURER'S INSTRUCTIONS AND YOUR LOCAL REGULATIONS.
   (14) Clean the mating surfaces of the ground wire terminal lug, the fire detector, and the fire detector mounting bracket.
     (a) Use a Textile-Lint free Cotton - (Material No.14SBA1) wet with Non Aqueous Cleaner-General - - (Material No.08BAA9) to make clean the surfaces.
     (b) Use a clean lint-free cloth to dry the surface before the solvent becomes a gas.
   (15) Attach the ground wire (90) to the fire detector element 4001WD1-A with the screw (100) and the washer (40).
   (16) TORQUE the screw (100) to between 25 and 20 lbf.in (0.28 and 0.23 m.daN ) T.
Subtask 71-52-43-760-053-A ** ON A/C NOT FOR ALL
B. Do an electrical bond resistance check.
   (1) Put one lead of the ohmmeter on the ground wire (90) near the ground stud (100).
   (2) Put the other lead of the ohmmeter on the top surface of the bracket.
   (3) The resistance measured between the ohmmeter leads must not be more than 0.001 ohm.
   (4) If the resistance is more than 0.001 ohm, remove the applicable hardware and clean the mating surfaces. Do again this procedure until the resistance is less than 0.0025 ohm.
Subtask 71-52-43-865-071-A ** ON A/C NOT FOR ALL
C. Remove the safety clip(s) and the tag(s) and close this(these) circuit breaker(s):
PANELDESIGNATIONFINLOCATION
** ON A/C NOT FOR ALL
49VUENGINE/2/FIRE DET/LOOP B8WD2A07
49VUENGINE/1/FIRE DET/LOOP A7WD1A06
49VUENGINE/2/FADEC A/AND EIU 22KS2A05
49VUENGINE/1/FADEC A/AND EIU 12KS1A04
49VUENGINE/1 AND 2/IGN/SYS A1JHA03
49VUENGINE/1 AND 2/IGN/SYS A1JHA03
49VUANTI ICE/PROBES/AOA/14DA1D04
49VUANTI ICE/PROBES/PHC/12DA1D03
49VUANTI ICE/PROBES/PITOT/13DA1D02
49VUCOM/CVR/SPLY2RKE14
49VUCOM/CVR/CTL4RKE13
49VUNAV PROBES/ADIRU 1/AND AOA 1/26VAC5FP1F07
49VUNAV PROBES/ADIRU1/115VAC4FP1F06
105VUADIRS/ADIRU1/28VDC6FP1C02
121VURCDR/DFDR7TUK16
121VUENGINE/ENG2/OIL/PRESS2EN2N42
121VUENGINE/ENG2/OIL/QTY1EN2N41
121VUENGINE/ENG1/OIL/PRESS2EN1N40
121VUENGINE/ENG1/OIL/QTY1EN1N39
121VUADIRS/ADIRU/2/26VAC AND AOA5FP2N08
121VUADIRS/ADIRU/3/26VAC AND AOA5FP3N07
121VUADIRS/ADIRU/2/115VAC4FP2N06
121VUADIRS/ADIRU/3/115VAC4FP3N05
121VUADIRS/ADIRU/2/28VDC6FP2N04
121VUADIRS/ADIRU/3/28VDC6FP3N03
121VUENGINE/IGN/ENG2/SYS B3JH2P42
121VUENGINE/IGN/ENG1/SYS B3JH1P41
121VUENGINE/IGN/ENG2/SYS A BAT2JH2P40
121VUENGINE/IGN/ENG1/SYS A BAT2JH1P39
121VUENGINE/ENG1 AND 2 FIRE EXTIG/BTL1/SQUIB/B2WE1Q44
121VUENGINE/ENG1 AND 2 FIRE EXTIG/BTL1/SQUIB/A1WE1Q43
121VUENGINE/ENG1 AND 2 FIRE EXTIG/BTL2/SQUIB/A1WE2Q41
121VUENGINE/ENG2/FADEC B4KS2Q40
121VUENGINE/ENG2/FIRE DET/LOOP A7WD2Q39
121VUENGINE/ENG1/FIRE DET/LOOP B8WD1Q38
121VUENGINE/ENG1/FADEC B/AND EIU 14KS1R41
122VUELEC/GCU/22XU2T27
122VUELEC/GCU/12XU1T26
122VUANTI ICE/WINDOWS/R4DG2W14
122VUANTI ICE/WINDOWS/L4DG1X14
122VUANTI ICE/PROBES/PHC/32DA3Y16
122VUANTI ICE/PROBES/2/TAT1DA2Y15
122VUANTI ICE/PROBES/2/PITOT3DA2Y14
122VUANTI ICE/PROBES/2/AOA4DA2Y13
122VUANTI ICE/PROBES/PHC/22DA2Y12
122VUANTI ICE/PROBES/2/STATIC5DA2Y11
122VUANTI ICE/PROBES/3/PITOT3DA3Z16
122VUANTI ICE/PROBES/3/AOA4DA3Z15
122VUANTI ICE/PROBES/3/STATIC5DA3Z14
122VUANTI ICE/PROBES/1/STATIC5DA1Z13
122VUANTI ICE/PROBES/1/TAT1DA1Z12
Subtask 71-52-43-861-056-A ** ON A/C NOT FOR ALL
D. Energize the aircraft electrical circuits (Ref. AMM TASK 24-41-00-861-002).
Subtask 71-52-43-869-071-A ** ON A/C NOT FOR ALL
E. Do the EIS start procedure (for the upper and lower display units of the ECAM system) (Ref. AMM TASK 31-60-00-860-001).
Subtask 71-52-43-869-072-A ** ON A/C NOT FOR ALL
F. Aircraft Maintenance Configuration
   (1) On the ENG/APU FIRE panel 1WD, make sure that :
  • the ENG FIRE legend of the pushbutton switch is off.
   (2) Make sure that the upper display unit of ECAM system does not show :
  • the LOOP A FAULT indication
5. Close-up
Subtask 71-52-43-869-073-A ** ON A/C NOT FOR ALL
A. Do the EIS stop procedure (Ref. AMM TASK 31-60-00-860-002).
Subtask 71-52-43-862-056-A ** ON A/C NOT FOR ALL
B. De-energize the aircraft electrical circuits (Ref. AMM TASK 24-41-00-862-002).
Subtask 71-52-43-410-062-A ** ON A/C NOT FOR ALL
C. Close Access
   (1) Make sure that the work area is clean and clear of tools and other items.
   (2) Close the thrust reverser doors (Ref. AMM TASK 78-36-00-410-040):
     (a) FOR [1000EM1] (ENGINE-1)
451AL 452AR
     (b) FOR [1000EM2] (ENGINE-2)
461AL 462AR
Subtask 71-52-43-440-056-A ** ON A/C NOT FOR ALL
D. Make the thrust reverser serviceable (Ref. AMM TASK 78-30-00-081-041).
Subtask 71-52-43-410-063-A ** ON A/C NOT FOR ALL
E. Close Access
   (1) Close the fan cowl doors (Ref. AMM TASK 71-13-00-410-040):
     (a) FOR [1000EM1] (ENGINE-1)
437AL 438AR
     (b) FOR [1000EM2] (ENGINE-2)
447AL 448AR
   (2) Remove the access platform(s).
   (3) Remove the WARNING NOTICE(S).
[Rev.10 from 2021] 2026.04.01 12:55:02 UTC
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