DOC AIRBUS | AMM A320FInstallation of the Integrated Drive Generator (IDG) Control and Anti-ice Harness 238W0904 [CFMI]
TASK 71-51-44-400-003-A
Installation of the Integrated Drive Generator (IDG) Control and Anti-ice Harness 238W0904
1. Reason for the Job
Self explanatory
2. Job Set-up Information
A. Fixtures, Tools, Test and Support Equipment
B. Consumable Materials
C. Work Zones and Access Panels
D. Referenced Information
3. Job Set-up
Subtask 71-51-44-860-052-A ** ON A/C NOT FOR ALL
4. Procedure
Subtask 71-51-44-420-052-A ** ON A/C NOT FOR ALL
Subtask 71-51-44-410-052-A ** ON A/C NOT FOR ALL
[Rev.10 from 2021]
2026.04.01 12:55:04 UTC
Installation of the Integrated Drive Generator (IDG) Control and Anti-ice Harness 238W0904
1. Reason for the Job
Self explanatory
2. Job Set-up Information
A. Fixtures, Tools, Test and Support Equipment
B. Consumable Materials
| REFERENCE | DESIGNATION |
|---|---|
| No specific | Safety wire 0.020 in Dia. nickel chromium iron alloy (MS20995N20) |
| ZONE/ACCESS | ZONE DESCRIPTION |
|---|---|
| FOR [1000EM1] (ENGINE-1) | |
| 437AL, 438AR | |
| FOR [1000EM2] (ENGINE-2) | |
| 447AL, 448AR | |
| REFERENCE | DESIGNATION |
|---|---|
| TASK 24-21-00-710-040-A | Operational Test of the IDG Disconnect and Reconnect Function - Engine Static |
| TASK 24-21-00-720-041-A | Operational Test of the Integrated Drive Generator (IDG) Disconnect and Reconnect (Reset) Function - Engine in Operation |
| TASK 30-21-00-710-001-A | Operational Check of the Engine-Anti-Ice System Fault-Warning |
| TASK 70-60-00-910-042-A | Nacelle Standard Practices |
| 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 73-25-34-710-040-A | Operational Test of the Engine Interface Unit |
IDG Control and Anti-ice HarnessSubtask 71-51-44-860-052-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 1M(3 FT) is in position.
Subtask 71-51-44-010-055-A ** ON A/C NOT FOR ALL (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 1M(3 FT) is in position.
B. Make sure that the fan cowl doors are open (Ref. AMM TASK 71-13-00-010-040):
(1) FOR [1000EM1] (ENGINE-1)
437AL 438AR
(2) FOR [1000EM2] (ENGINE-2)
447AL 448AR
Subtask 71-51-44-865-057-A ** ON A/C NOT FOR ALL (1) FOR [1000EM1] (ENGINE-1)
437AL 438AR
(2) FOR [1000EM2] (ENGINE-2)
447AL 448AR
WARNING:
OPEN THE PROBE HEATER CIRCUIT-BREAKERS 1DA1(2), 3DA1(2,3), 4DA1(2,3) AND 5DA1(2,3) BEFORE ENG1(2)FADEC A and EIU 1(2) C/B'S 2KS1 AND 2KS2. IF YOU DO NOT OBEY THIS SEQUENCE:
C. Make sure that this(these) circuit breaker(s) is(are) open, safetied and tagged:- THE PROBES WILL BECOME TOO HOT.
- THIS CAN CAUSE DAMAGE TO EQUIPMENT AND INJURY TO MAINTENANCE PERSONNEL.
| PANEL | DESIGNATION | FIN | LOCATION |
|---|---|---|---|
| ** ON A/C NOT FOR ALL | |||
| 49VU | ENGINE/1 AND 2/IGN/SYS A | 1JH | A03 |
| 49VU | ANTI ICE/PROBES/AOA/1 | 4DA1 | D04 |
| 49VU | ANTI ICE/PROBES/PITOT/1 | 3DA1 | D02 |
| 49VU | COM/CVR/SPLY | 2RK | E14 |
| 49VU | COM/CVR/CTL | 4RK | E13 |
| 121VU | RCDR/DFDR | 7TU | K16 |
| 121VU | HYDRAULIC/HYD POWER/Y | 3803GX | N30 |
| 122VU | ANTI ICE/WINDOWS/R | 4DG2 | W14 |
| 122VU | ANTI ICE/WINDOWS/L | 4DG1 | X14 |
| 122VU | ANTI ICE/PROBES/2/PITOT | 3DA2 | Y14 |
| 122VU | ANTI ICE/PROBES/2/AOA | 4DA2 | Y13 |
| 122VU | ANTI ICE/PROBES/2/STATIC | 5DA2 | Y11 |
| 122VU | ANTI ICE/PROBES/3/PITOT | 3DA3 | Z16 |
| 122VU | ANTI ICE/PROBES/3/AOA | 4DA3 | Z15 |
| 122VU | ANTI ICE/PROBES/3/STATIC | 5DA3 | Z14 |
| 122VU | ANTI ICE/PROBES/1/STATIC | 5DA1 | Z13 |
| 123VU | Y HYD/ELEC/PUMP | 3802GX | AB06 |
| 123VU | Y HYD/ELEC/ELEC PUMP/NORM | 3801GX | AB03 |
| FOR FIN: 1000EM1 (ENGINE1) | |||
| 49VU | ENGINE/1/FIRE DET/LOOP A | 7WD1 | A06 |
| 49VU | ENGINE/1/FADEC A/AND EIU 1 | 2KS1 | A04 |
| 121VU | ENGINE/IGN/ENG1/SYS B | 3JH1 | P41 |
| 121VU | ENGINE/IGN/ENG1/SYS A BAT | 2JH1 | P39 |
| 121VU | ENGINE/ENG1 AND 2 FIRE EXTIG/BTL1/SQUIB/B | 2WE1 | Q44 |
| 121VU | ENGINE/ENG1 AND 2 FIRE EXTIG/BTL1/SQUIB/A | 1WE1 | Q43 |
| 121VU | ENGINE/ENG1/FIRE DET/LOOP B | 8WD1 | Q38 |
| 121VU | ENGINE/ENG1/FADEC B/AND EIU 1 | 4KS1 | R41 |
| 122VU | ELEC/GCU/1 | 2XU1 | T26 |
| FOR FIN: 1000EM2 (ENGINE2) | |||
| 49VU | ENGINE/2/FIRE DET/LOOP B | 8WD2 | A07 |
| 49VU | ENGINE/2/FADEC A/AND EIU 2 | 2KS2 | A05 |
| 121VU | ENGINE/IGN/ENG2/SYS B | 3JH2 | P42 |
| 121VU | ENGINE/IGN/ENG2/SYS A BAT | 2JH2 | P40 |
| 121VU | ENGINE/ENG1 AND 2 FIRE EXTIG/BTL2/SQUIB/B | 2WE2 | Q42 |
| 121VU | ENGINE/ENG1 AND 2 FIRE EXTIG/BTL2/SQUIB/A | 1WE2 | Q41 |
| 121VU | ENGINE/ENG2/FADEC B | 4KS2 | Q40 |
| 121VU | ENGINE/ENG2/FIRE DET/LOOP A | 7WD2 | Q39 |
| 122VU | ELEC/GCU/2 | 2XU2 | T27 |
Subtask 71-51-44-420-052-A ** ON A/C NOT FOR ALL
A. Installation of the IDG Control and Anti-ice Harness 238W0904
(2) Put the electrical harness (5) in position on the engine.
(3) Connect the electrical connectors 401VC-A, 404VC-A and 405VC-A to the pylon junction box. Tighten the connectors with your hand plus one-eighth turn.
(4) Connect the electrical connector 4005VC-A to the connector 4005VC. Tighten the connector with your hand plus one-eighth turn.
(5) Put the harness (5) into the flip-lock clamps (10) and tighten the captive screws.
(6) Attach the clamp (25), (40) and (60) on the harness (5). Make sure that the clamp (55) is installed on the vibration sensor harness.
(7) Attach the clamps (25), (40) and (60) to the brackets with the screws (15) and the washers (20).
(8) Attach the clamp (40) to the bracket with the screw (30), the washer (20) and the spacer (35).
(9) Attach the clamps (40) and (55) to the bracket with the screw (45), the washer (20) and the nut (50).
(11) Install the clamps (25) and (40) on the harness (5) near flange station 174 (D).
(12) Attach the clamp (25) to the clamp (40) with the screw (45), the washer (20) and the nut (50).
(13) Attach the clamps (40) to the brackets with the screws (30), the washers (20) and the spacers (35).
(14) TORQUE the screws (15) and (30) to between 22 and 20 lbf.in (0.25 and 0.23 m.daN )
.
(15) Install the clamps (70), (75) and (80) on the harness (5).
(16) Attach the clamps to the brackets with the screws (15), washers (20) and the nuts (50).
(17) TORQUE the nuts (50) to between 25 and 20 lbf.in (0.28 and 0.23 m.daN ).
(18) Put the harness (5) into the line blocks (85) and tighten the captive screws.
POST SB RA32071-81
(19) Put clamp (95) on harness (5) and attach it to the bracket near the anti-ice valve with the screw (45), the washer (20) and the nut (50).
END OF SB RA32071-81
(20) Connect the electrical connector 4001VC-A to the interphone jack disconnect. Tighten the connector with your hand plus one-eighth turn.
(21) Put clamp (55) on connector 4001VC-A wire and attach it to the bracket with the screw (90), the washer (20) and the nut (50).
(22) Connect the electrical connector 4000DN-A to the anti-ice valve. Tighten the connector with your hand plus one-eighth turn.
(23) Put clamp (25) on harness (5) and attach it to the bracket with the screw (90) and the washer (20).
POST SB RA32071-65
(24) Put clamp (105) on harness (5) and attach it to the line block (110) with the screw (100), the washer (20) and the nut (50).
END OF SB RA32071-65
(25) Connect the electrical connectors 4000XU-A, 4000XU-B and 4000XU-C to the integrated drive generator (IDG). Tighten the connectors with your hand plus one-eighth turn.
(26) TORQUE the nuts (50) to between 25 and 20 lbf.ft (3.39 and 2.71 m.daN ).
(27) TORQUE the screws (90) to between 22 and 20 lbf.in (0.25 and 0.23 m.daN ).
(28) Connect the ground wires to the plate with the nuts (115), the lockwashers (120) and the washers (125):
(29) Examine the harness installation and make sure that all clamps and line blocks are installed correctly.
(30) Safety the connectors and backshells with Safety wire 0.020 in Dia. nickel chromium iron alloy (MS20995N20)
Subtask 71-51-44-865-058-A ** ON A/C NOT FOR ALL NOTE: To tighten the flip-lock clamps and hinged line blocks, turn the captive screws 1/4 turn clockwise to engage the cam nuts.
NOTE: Refer to the recommended procedure for the installation of the wire harness (Ref. AMM TASK 70-60-00-910-042).
(1) Remove the protective covers from the electrical connectors. (2) Put the electrical harness (5) in position on the engine.
(3) Connect the electrical connectors 401VC-A, 404VC-A and 405VC-A to the pylon junction box. Tighten the connectors with your hand plus one-eighth turn.
(4) Connect the electrical connector 4005VC-A to the connector 4005VC. Tighten the connector with your hand plus one-eighth turn.
(5) Put the harness (5) into the flip-lock clamps (10) and tighten the captive screws.
(6) Attach the clamp (25), (40) and (60) on the harness (5). Make sure that the clamp (55) is installed on the vibration sensor harness.
(7) Attach the clamps (25), (40) and (60) to the brackets with the screws (15) and the washers (20).
(8) Attach the clamp (40) to the bracket with the screw (30), the washer (20) and the spacer (35).
(9) Attach the clamps (40) and (55) to the bracket with the screw (45), the washer (20) and the nut (50).
NOTE: Detail A shows the most current harness installation that is applicable for some engines. Detail B illustrates the initial harness installation. Refer to the illustrated parts catalog for applicable harness installation configurations.
(10) Put the harness (5) into the flip-lock clamps (65) and tighten the captive screws. (11) Install the clamps (25) and (40) on the harness (5) near flange station 174 (D).
(12) Attach the clamp (25) to the clamp (40) with the screw (45), the washer (20) and the nut (50).
(13) Attach the clamps (40) to the brackets with the screws (30), the washers (20) and the spacers (35).
(14) TORQUE the screws (15) and (30) to between 22 and 20 lbf.in (0.25 and 0.23 m.daN )
. (15) Install the clamps (70), (75) and (80) on the harness (5).
(16) Attach the clamps to the brackets with the screws (15), washers (20) and the nuts (50).
(17) TORQUE the nuts (50) to between 25 and 20 lbf.in (0.28 and 0.23 m.daN )
. (18) Put the harness (5) into the line blocks (85) and tighten the captive screws.
POST SB RA32071-81
(19) Put clamp (95) on harness (5) and attach it to the bracket near the anti-ice valve with the screw (45), the washer (20) and the nut (50).
END OF SB RA32071-81
(20) Connect the electrical connector 4001VC-A to the interphone jack disconnect. Tighten the connector with your hand plus one-eighth turn.
(21) Put clamp (55) on connector 4001VC-A wire and attach it to the bracket with the screw (90), the washer (20) and the nut (50).
(22) Connect the electrical connector 4000DN-A to the anti-ice valve. Tighten the connector with your hand plus one-eighth turn.
(23) Put clamp (25) on harness (5) and attach it to the bracket with the screw (90) and the washer (20).
POST SB RA32071-65
(24) Put clamp (105) on harness (5) and attach it to the line block (110) with the screw (100), the washer (20) and the nut (50).
END OF SB RA32071-65
(25) Connect the electrical connectors 4000XU-A, 4000XU-B and 4000XU-C to the integrated drive generator (IDG). Tighten the connectors with your hand plus one-eighth turn.
(26) TORQUE the nuts (50) to between 25 and 20 lbf.ft (3.39 and 2.71 m.daN )
. (27) TORQUE the screws (90) to between 22 and 20 lbf.in (0.25 and 0.23 m.daN )
. (28) Connect the ground wires to the plate with the nuts (115), the lockwashers (120) and the washers (125):
| GROUND WIRE | GROUND |
|---|---|
| 904037 + SHIELD | GD9958DC |
| 904032 + SHIELD | GD9959DC |
| 904007 | GD9960DC |
| 904004 + SHIELD | GD9961DC |
| 904010 | GD9962DC |
| 904037 + SHIELD | GD9963DC |
(30) Safety the connectors and backshells with Safety wire 0.020 in Dia. nickel chromium iron alloy (MS20995N20)
B. Remove the safety clip(s) and the tag(s) and close this(these) circuit breaker(s):
Subtask 71-51-44-710-051-A ** ON A/C NOT FOR ALL | PANEL | DESIGNATION | FIN | LOCATION |
|---|---|---|---|
| ** ON A/C NOT FOR ALL | |||
| 49VU | ENGINE/1 AND 2/IGN/SYS A | 1JH | A03 |
| 49VU | ANTI ICE/PROBES/AOA/1 | 4DA1 | D04 |
| 49VU | ANTI ICE/PROBES/PITOT/1 | 3DA1 | D02 |
| 49VU | COM/CVR/SPLY | 2RK | E14 |
| 49VU | COM/CVR/CTL | 4RK | E13 |
| 121VU | RCDR/DFDR | 7TU | K16 |
| 121VU | HYDRAULIC/HYD POWER/Y | 3803GX | N30 |
| 122VU | ANTI ICE/WINDOWS/R | 4DG2 | W14 |
| 122VU | ANTI ICE/WINDOWS/L | 4DG1 | X14 |
| 122VU | ANTI ICE/PROBES/2/PITOT | 3DA2 | Y14 |
| 122VU | ANTI ICE/PROBES/2/AOA | 4DA2 | Y13 |
| 122VU | ANTI ICE/PROBES/2/STATIC | 5DA2 | Y11 |
| 122VU | ANTI ICE/PROBES/3/PITOT | 3DA3 | Z16 |
| 122VU | ANTI ICE/PROBES/3/AOA | 4DA3 | Z15 |
| 122VU | ANTI ICE/PROBES/3/STATIC | 5DA3 | Z14 |
| 122VU | ANTI ICE/PROBES/1/STATIC | 5DA1 | Z13 |
| 123VU | Y HYD/ELEC/PUMP | 3802GX | AB06 |
| 123VU | Y HYD/ELEC/ELEC PUMP/NORM | 3801GX | AB03 |
| FOR FIN: 1000EM1 (ENGINE1) | |||
| 49VU | ENGINE/1/FIRE DET/LOOP A | 7WD1 | A06 |
| 49VU | ENGINE/1/FADEC A/AND EIU 1 | 2KS1 | A04 |
| 121VU | ENGINE/IGN/ENG1/SYS B | 3JH1 | P41 |
| 121VU | ENGINE/IGN/ENG1/SYS A BAT | 2JH1 | P39 |
| 121VU | ENGINE/ENG1 AND 2 FIRE EXTIG/BTL1/SQUIB/B | 2WE1 | Q44 |
| 121VU | ENGINE/ENG1 AND 2 FIRE EXTIG/BTL1/SQUIB/A | 1WE1 | Q43 |
| 121VU | ENGINE/ENG1/FIRE DET/LOOP B | 8WD1 | Q38 |
| 121VU | ENGINE/ENG1/FADEC B/AND EIU 1 | 4KS1 | R41 |
| 122VU | ELEC/GCU/1 | 2XU1 | T26 |
| FOR FIN: 1000EM2 (ENGINE2) | |||
| 49VU | ENGINE/2/FIRE DET/LOOP B | 8WD2 | A07 |
| 49VU | ENGINE/2/FADEC A/AND EIU 2 | 2KS2 | A05 |
| 121VU | ENGINE/IGN/ENG2/SYS B | 3JH2 | P42 |
| 121VU | ENGINE/IGN/ENG2/SYS A BAT | 2JH2 | P40 |
| 121VU | ENGINE/ENG1 AND 2 FIRE EXTIG/BTL2/SQUIB/B | 2WE2 | Q42 |
| 121VU | ENGINE/ENG1 AND 2 FIRE EXTIG/BTL2/SQUIB/A | 1WE2 | Q41 |
| 121VU | ENGINE/ENG2/FADEC B | 4KS2 | Q40 |
| 121VU | ENGINE/ENG2/FIRE DET/LOOP A | 7WD2 | Q39 |
| 122VU | ELEC/GCU/2 | 2XU2 | T27 |
C. Do tests below:
(1) Do a test of the IDG - Engine static (Ref. AMM TASK 24-21-00-710-040).
(2) Do a test of the IDG - Engine in operation (Ref. AMM TASK 24-21-00-720-041).
(3) Do a test of the Engine Air Intake Ice Protection (Ref. AMM TASK 30-21-00-710-001).
(4) Do a test of the EIU (Ref. AMM TASK 73-25-34-710-040).
5. Close-up(1) Do a test of the IDG - Engine static (Ref. AMM TASK 24-21-00-710-040).
(2) Do a test of the IDG - Engine in operation (Ref. AMM TASK 24-21-00-720-041).
(3) Do a test of the Engine Air Intake Ice Protection (Ref. AMM TASK 30-21-00-710-001).
(4) Do a test of the EIU (Ref. AMM TASK 73-25-34-710-040).
Subtask 71-51-44-410-052-A ** ON A/C NOT FOR ALL
A. Close Access
(1) Make sure that the work area is clean and clear of tools and other items.
(2) Close the fan cowl doors (Ref. AMM TASK 71-13-00-410-040):
(3) FOR [1000EM1] (ENGINE-1)
437AL 438AR
(4) FOR [1000EM2] (ENGINE-2)
447AL 448AR
(5) Remove the access platform(s).
(6) Remove the WARNING NOTICE(S).
(1) Make sure that the work area is clean and clear of tools and other items.
(2) Close the fan cowl doors (Ref. AMM TASK 71-13-00-410-040):
(3) FOR [1000EM1] (ENGINE-1)
437AL 438AR
(4) FOR [1000EM2] (ENGINE-2)
447AL 448AR
(5) Remove the access platform(s).
(6) Remove the WARNING NOTICE(S).