Installation of the Maintenance Interphone Jack
TASK 23-44-41-400-003-A
Installation of the Maintenance Interphone Jack
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 23-44-41-860-051-A ** ON A/C NOT FOR ALL
Subtask 23-44-41-420-051-A ** ON A/C NOT FOR ALL
Subtask 23-44-41-860-052-A ** ON A/C NOT FOR ALL
[Rev.10 from 2021]
2026.04.02 06:12:14 UTC
Installation of the Maintenance Interphone Jack
WARNING:
BE CAREFUL WHEN YOU DO WORK ON THE ENGINE PARTS AFTER THE ENGINE SHUTDOWN. USE APPLICABLE THERMAL GLOVES. THE ENGINE PARTS CAN STAY HOT FOR ONE HOUR AFTER SHUTDOWN AND CAN BURN YOU.
WARNING:
BE CAREFUL WHEN YOU USE CONSUMABLE MATERIALS. OBEY THE MATERIAL MANUFACTURER'S INSTRUCTIONS AND YOUR LOCAL REGULATIONS.
ZONE: 210
ZONE: 410
ZONE: 420
ZONE: 430
ZONE: 440
FIN: 4000RJ1 ** ON A/C NOT FOR ALL
FIN: 4000RJ2 ** ON A/C NOT FOR ALL
1. Reason for the JobZONE: 410
ZONE: 420
ZONE: 430
ZONE: 440
FIN: 4000RJ1 ** ON A/C NOT FOR ALL
FIN: 4000RJ2 ** ON A/C NOT FOR ALL
Self explanatory
2. Job Set-up Information
A. Fixtures, Tools, Test and Support Equipment
B. Consumable Materials
| REFERENCE | DESIGNATION |
|---|---|
| Mag-Chem Skysol | |
| (Material No.CP1039) | acetone |
| (Material No.CP1041) | isopropyl alcohol |
| (Material No.CP2011) | stoddard solvent |
| (Material No.CP2269) | Locktite 242 |
| (Material No.CP2559) | ardrox 552 |
| (Material No.CP2560) | turco ind 79 |
| (Material No.CP2566) | mag-chem teksol |
| (Material No.CP2584) | degreasol 99 R |
| (Material No.14SBA1) | Textile-Lint free Cotton - |
| ZONE/ACCESS | ZONE DESCRIPTION |
|---|---|
| 210 | CKPT,FWD COMPT BHD TO FLT COMPT BULKHEAD |
| 410 | ENG 1 PYLON BOX AND FORWARD FAIRING |
| 420 | ENG 2 PYLON BOX AND FORWARD FAIRING |
| 430 | ENG 1 AIR INTAKE, FAN AND ACCESS GEARBOX |
| 440 | ENG 2 AIR INTAKE, FAN AND ACCESS GEARBOX |
| REFERENCE | DESIGNATION |
|---|---|
| TASK 23-44-00-700-001-A | Operational Test of the Service Interphone |
Subtask 23-44-41-860-051-A ** ON A/C NOT FOR ALL
A. Aircraft Maintenance Configuration
(1) On the panel 115VU:
(3) On the panel 50VU:
Subtask 23-44-41-865-051-A ** ON A/C NOT FOR ALL (1) On the panel 115VU:
- Make sure that the WARNING NOTICE(S) to tell persons not to start the engine 1(2) is in position.
(3) On the panel 50VU:
- Make sure that the ON legend of the ENG/FADEC GND PWR 1(2) pushbutton switch is off.
- Make sure that the WARNING NOTICE(S) is installed.
B. Make sure that this(these) circuit breaker(s) is(are) open, safetied and tagged:
4. Procedure| PANEL | DESIGNATION | FIN | LOCATION |
|---|---|---|---|
| ** ON A/C NOT FOR ALL | |||
| FOR FIN: 101RH (DIRCIDS, 1) | |||
| 49VU | COM/CIDS/DIR ESS/1 | 150RH | G01 |
| ** ON A/C NOT FOR ALL | |||
| 49VU | AIR COND/CIDS/SDF/DIR1 ESS | 15WH | C05 |
| ** ON A/C NOT FOR ALL | |||
| 121VU | COM NAV/CIDS/DIR NORM/1 | 151RH | M05 |
| ** ON A/C NOT FOR ALL | |||
| 121VU | COM NAV/CIDS/DIR NORM/1 | 151RH | M06 |
| ** ON A/C NOT FOR ALL | |||
| 121VU | COM/CIDS/DIR 1/BAT | 147RH | P13 |
| ** ON A/C NOT FOR ALL | |||
| 122VU | AIR COND/CIDS/SDF/DIR NORM/1 | 17WH | T17 |
| ** ON A/C NOT FOR ALL | |||
| FOR FIN: 102RH (DIRCIDS, 2) | |||
| 49VU | COM/CIDS/DIR ESS/2 | 157RH | G02 |
| ** ON A/C NOT FOR ALL | |||
| 49VU | COM/CIDS/DIR ESS/1 | 150RH | G01 |
| ** ON A/C NOT FOR ALL | |||
| 49VU | AIR COND/CIDS/SDF/DIR2 ESS | 18WH | C06 |
| ** ON A/C NOT FOR ALL | |||
| 49VU | COM DIR ESS/2 | 157RH | G02 |
| ** ON A/C NOT FOR ALL | |||
| 121VU | COM NAV/CIDS/DIR NORM/2 | 156RH | M06 |
| 121VU | COM NAV/CIDS/DIR NORM/1 | 151RH | M05 |
| ** ON A/C NOT FOR ALL | |||
| 121VU | COM NAV/CIDS/DIR NORM/2 | 156RH | M07 |
| 121VU | COM NAV/CIDS/DIR NORM/1 | 151RH | M06 |
| ** ON A/C NOT FOR ALL | |||
| 121VU | COM/CIDS/DIR 2/BAT | 146RH | P14 |
| ** ON A/C NOT FOR ALL | |||
| 122VU | AIR COND/CIDS/SDF/DIR NORM/2 | 14WH | T18 |
Subtask 23-44-41-420-051-A ** ON A/C NOT FOR ALL
A. Installation of the Maintenance Interphone Jack
(1) Clean the component interfaces and the adjacent area.
(2) Do an inspection of the component interfaces and the adjacent area.
SPIB CFM02189MW1
(3) Remove the protective covers from the interphone jack (30) and the insulations from the wires.
(4) Connect the electrical wires to the interphone jack (30). Attach the wires with the screws (80), washers (75), lockwashers (70), and nuts (65).
(5) TORQUE the nuts (65) to between 0.23 and 0.17 m.daN (20.35 and 15.04 lbf.in )
.
(a) Clean the threads of the coupling nut (5), the shell (25), the interphone jack (30) and the nut (45) with isopropyl alcohol (Material No.CP1041) or acetone (Material No.CP1039) or stoddard solvent (Material No.CP2011) or ardrox 552 (Material No.CP2559) or turco ind 79 (Material No.CP2560) or mag-chem teksol (Material No.CP2566) or degreasol 99 R (Material No.CP2584) orCP 2656 Mag-Chem Skysol .
(b) Clean the threads with Textile-Lint free Cotton - (Material No.14SBA1) before the alcohol becomes a gaz.
(c) Put one drop of thread locker Locktite 242 (Material No.CP2269) on the threads of the coupling nut (5) and the nut (45).
(d) Make sure the slot in the shell (25) and the slot in the mounting plate (35) are aligned with the drain hole in the access plate (60) to let the water go out.
(7) Attach the interphone jack (30) to the mounting plate (35) with the washer (40) and the nut (45).
(8) TORQUE the nut (45) to between 0.40 and 0.34 m.daN (35.40 and 30.09 lbf.in )
(9) Move the shell (25) along the jack (30) until the shell touches the mounting plate (35).
(10) Put the retainer assembly (20) on the shell (25).
(11) Move the two pressure plates (10) and the gland (15) until they touch the shell (25).
(12) Move the coupling nut (5) along the harness until it touches the shell (25). Tighten the coupling nut (5) with your hand plus one-eighth of a turn.
(13) Make sure that the electrical wires are tight and do not twist when you tighten the coupling nut.
BEFORE SPIB CFM02189MW1
(14) Make sure that the slot in the shell (25) and the slot in the mounting plate (35) are aligned with the drain hole in the access plate (60) to let the water go out.
(15) Put the shell (25) and the mounting plate (20) in position on the cover (60) and install the screws (50).
(16) TORQUE the screws (50) to between 0.17 and 0.14 m.daN (15.04 and 12.39 lbf.in )
.
(17) Put the cover (60) in position on the air intake cowl and attach it with the screws (55).
(18) TORQUE the screws (55) to between 0.28 and 0.23 m.daN (24.78 and 20.35 lbf.in )
.
AFTER SPIB CFM02189MW1
(19) Install the screws (50) that hold the shell (25), mounting plate (35) and retainer (20) on the air intake-cowl outer-barrel.
(20) TORQUE the screws (50) to between 0.17 and 0.14 m.daN (15.04 and 12.39 lbf.in )
.
END SPIB CFM02189MW1
AFTER SPIB CFM16161PC1
(21) Remove the COVER - PROTECTION from the interphone jack harness assembly (80) and the ground jack (100).
(22) Prepare the interphone jack harness assembly (80), the ground jack (100), its mounting nuts for installation.
(a) Clean the threads of the interphone jack harness assembly (80), the threads of the ground jack (100) and the nuts (45) and (85) with isopropyl alcohol (Material No.CP1041) or acetone (Material No.CP1039) or stoddard solvent (Material No.CP2011) or ardrox 552 (Material No.CP2559) or turco ind 79 (Material No.CP2560) or mag-chem teksol (Material No.CP2566) or degreasol 99 R (Material No.CP2584) orCP 2656 Mag-Chem Skysol .
(b) Clean the threads with Textile-Lint free Cotton - (Material No.14SBA1) before the alcohol becomes a gaz.
(c) Put one drop of thread locker Locktite 242 (Material No.CP2269) on the threads of the nuts (45) and (85).
(23) Install the interphone jack harness assembly (80) into the retainer (55).
(24) Attach the retainer (55) and interphone jack harness assembly (80) to the mounting plate (35) with the lockwasher (40) and the nut (45).
(25) TORQUE the nut (45) to between 35.39 and 30.08 lbf.in (0.40 and 0.34 m.daN )
.
(26) Install the screws (50) that hold the mounting plate (35), and the retainer (55) on the air intake-cowl.
(27) TORQUE the screws (50) to between 9.73 and 7.96 lbf.in (0.11 and 0.09 m.daN )
.
(28) Put the ground wire (95) on the thread of the ground jack (100).
(29) Install the ground jack (100) on the support plate (120) with the washers (90) and the nut (85).
(30) TORQUE the nut (85) to between 35 and 30 lbf.in (0.40 and 0.34 m.daN )
.
(31) Install the support plate (120) on the air intake cowl with the screws (115).
(32) TORQUE the screws (115) to between 25 and 20 lbf.in (0.28 and 0.23 m.daN )
.
(33) Install the connector of the interphone jack harness assembly (80) on the air intake-cowl with the bolts (10), washers (15) and nuts (20).
(34) Attach the interphone jack harness assembly (80) to the flip lock clamp (30).
(35) Install the bolt (75) with the washers (65) and (70) and the nut (60) into the flip lock clamp (30).
(36) Tighten the bolt (75) until the spring is fully compressed against the clamp band and the 0.0625 in. (1.5875 mm) clearance is fully closed.
END AFTER SPIB CFM016161PC1
(37) Install the screws (105) and (110) that attach the anti-ice vent panel to the air intake-cowl.
Subtask 23-44-41-865-052-A ** ON A/C NOT FOR ALL (1) Clean the component interfaces and the adjacent area.
(2) Do an inspection of the component interfaces and the adjacent area.
SPIB CFM02189MW1
(3) Remove the protective covers from the interphone jack (30) and the insulations from the wires.
(4) Connect the electrical wires to the interphone jack (30). Attach the wires with the screws (80), washers (75), lockwashers (70), and nuts (65).
(5) TORQUE the nuts (65) to between 0.23 and 0.17 m.daN (20.35 and 15.04 lbf.in )
. NOTE: The RED wire goes to the RING. The YELLOW wire goes to the TIP. The BLUE wire goes to the SLEEVE.
(6) Prepare the interphone jack, its mounting nut, the coupling nut and the shell for installation. (a) Clean the threads of the coupling nut (5), the shell (25), the interphone jack (30) and the nut (45) with isopropyl alcohol (Material No.CP1041) or acetone (Material No.CP1039) or stoddard solvent (Material No.CP2011) or ardrox 552 (Material No.CP2559) or turco ind 79 (Material No.CP2560) or mag-chem teksol (Material No.CP2566) or degreasol 99 R (Material No.CP2584) or
(b) Clean the threads with Textile-Lint free Cotton - (Material No.14SBA1) before the alcohol becomes a gaz.
(c) Put one drop of thread locker Locktite 242 (Material No.CP2269) on the threads of the coupling nut (5) and the nut (45).
(d) Make sure the slot in the shell (25) and the slot in the mounting plate (35) are aligned with the drain hole in the access plate (60) to let the water go out.
(7) Attach the interphone jack (30) to the mounting plate (35) with the washer (40) and the nut (45).
(8) TORQUE the nut (45) to between 0.40 and 0.34 m.daN (35.40 and 30.09 lbf.in )

(9) Move the shell (25) along the jack (30) until the shell touches the mounting plate (35).
(10) Put the retainer assembly (20) on the shell (25).
(11) Move the two pressure plates (10) and the gland (15) until they touch the shell (25).
(12) Move the coupling nut (5) along the harness until it touches the shell (25). Tighten the coupling nut (5) with your hand plus one-eighth of a turn.
(13) Make sure that the electrical wires are tight and do not twist when you tighten the coupling nut.
BEFORE SPIB CFM02189MW1
(14) Make sure that the slot in the shell (25) and the slot in the mounting plate (35) are aligned with the drain hole in the access plate (60) to let the water go out.
(15) Put the shell (25) and the mounting plate (20) in position on the cover (60) and install the screws (50).
(16) TORQUE the screws (50) to between 0.17 and 0.14 m.daN (15.04 and 12.39 lbf.in )
. (17) Put the cover (60) in position on the air intake cowl and attach it with the screws (55).
(18) TORQUE the screws (55) to between 0.28 and 0.23 m.daN (24.78 and 20.35 lbf.in )
. AFTER SPIB CFM02189MW1
(19) Install the screws (50) that hold the shell (25), mounting plate (35) and retainer (20) on the air intake-cowl outer-barrel.
(20) TORQUE the screws (50) to between 0.17 and 0.14 m.daN (15.04 and 12.39 lbf.in )
. END SPIB CFM02189MW1
AFTER SPIB CFM16161PC1
(21) Remove the COVER - PROTECTION from the interphone jack harness assembly (80) and the ground jack (100).
(22) Prepare the interphone jack harness assembly (80), the ground jack (100), its mounting nuts for installation.
(a) Clean the threads of the interphone jack harness assembly (80), the threads of the ground jack (100) and the nuts (45) and (85) with isopropyl alcohol (Material No.CP1041) or acetone (Material No.CP1039) or stoddard solvent (Material No.CP2011) or ardrox 552 (Material No.CP2559) or turco ind 79 (Material No.CP2560) or mag-chem teksol (Material No.CP2566) or degreasol 99 R (Material No.CP2584) or
(b) Clean the threads with Textile-Lint free Cotton - (Material No.14SBA1) before the alcohol becomes a gaz.
(c) Put one drop of thread locker Locktite 242 (Material No.CP2269) on the threads of the nuts (45) and (85).
(23) Install the interphone jack harness assembly (80) into the retainer (55).
(24) Attach the retainer (55) and interphone jack harness assembly (80) to the mounting plate (35) with the lockwasher (40) and the nut (45).
(25) TORQUE the nut (45) to between 35.39 and 30.08 lbf.in (0.40 and 0.34 m.daN )
. (26) Install the screws (50) that hold the mounting plate (35), and the retainer (55) on the air intake-cowl.
(27) TORQUE the screws (50) to between 9.73 and 7.96 lbf.in (0.11 and 0.09 m.daN )
. (28) Put the ground wire (95) on the thread of the ground jack (100).
(29) Install the ground jack (100) on the support plate (120) with the washers (90) and the nut (85).
(30) TORQUE the nut (85) to between 35 and 30 lbf.in (0.40 and 0.34 m.daN )
. (31) Install the support plate (120) on the air intake cowl with the screws (115).
(32) TORQUE the screws (115) to between 25 and 20 lbf.in (0.28 and 0.23 m.daN )
. (33) Install the connector of the interphone jack harness assembly (80) on the air intake-cowl with the bolts (10), washers (15) and nuts (20).
(34) Attach the interphone jack harness assembly (80) to the flip lock clamp (30).
(35) Install the bolt (75) with the washers (65) and (70) and the nut (60) into the flip lock clamp (30).
(36) Tighten the bolt (75) until the spring is fully compressed against the clamp band and the 0.0625 in. (1.5875 mm) clearance is fully closed.
END AFTER SPIB CFM016161PC1
(37) Install the screws (105) and (110) that attach the anti-ice vent panel to the air intake-cowl.
B. Remove the safety clip(s) and the tag(s) and close this(these) circuit breaker(s):
Subtask 23-44-41-710-051-A ** ON A/C NOT FOR ALL 5. Close-up| PANEL | DESIGNATION | FIN | LOCATION |
|---|---|---|---|
| ** ON A/C NOT FOR ALL | |||
| FOR FIN: 101RH (DIRCIDS, 1) | |||
| 49VU | COM/CIDS/DIR ESS/1 | 150RH | G01 |
| ** ON A/C NOT FOR ALL | |||
| 49VU | AIR COND/CIDS/SDF/DIR1 ESS | 15WH | C05 |
| ** ON A/C NOT FOR ALL | |||
| 121VU | COM NAV/CIDS/DIR NORM/1 | 151RH | M05 |
| ** ON A/C NOT FOR ALL | |||
| 121VU | COM NAV/CIDS/DIR NORM/1 | 151RH | M06 |
| ** ON A/C NOT FOR ALL | |||
| 121VU | COM/CIDS/DIR 1/BAT | 147RH | P13 |
| ** ON A/C NOT FOR ALL | |||
| 122VU | AIR COND/CIDS/SDF/DIR NORM/1 | 17WH | T17 |
| ** ON A/C NOT FOR ALL | |||
| FOR FIN: 102RH (DIRCIDS, 2) | |||
| 49VU | COM/CIDS/DIR ESS/2 | 157RH | G02 |
| ** ON A/C NOT FOR ALL | |||
| 49VU | COM/CIDS/DIR ESS/1 | 150RH | G01 |
| ** ON A/C NOT FOR ALL | |||
| 49VU | AIR COND/CIDS/SDF/DIR2 ESS | 18WH | C06 |
| ** ON A/C NOT FOR ALL | |||
| 49VU | COM DIR ESS/2 | 157RH | G02 |
| ** ON A/C NOT FOR ALL | |||
| 121VU | COM NAV/CIDS/DIR NORM/2 | 156RH | M06 |
| 121VU | COM NAV/CIDS/DIR NORM/1 | 151RH | M05 |
| ** ON A/C NOT FOR ALL | |||
| 121VU | COM NAV/CIDS/DIR NORM/2 | 156RH | M07 |
| 121VU | COM NAV/CIDS/DIR NORM/1 | 151RH | M06 |
| ** ON A/C NOT FOR ALL | |||
| 121VU | COM/CIDS/DIR 2/BAT | 146RH | P14 |
| ** ON A/C NOT FOR ALL | |||
| 122VU | AIR COND/CIDS/SDF/DIR NORM/2 | 14WH | T18 |
Subtask 23-44-41-860-052-A ** ON A/C NOT FOR ALL
A. Put the aircraft back to its initial configuration.
(1) Make sure that the work area is clean and clear of tools and other items.
(2) Remove the access platform(s).
(3) Remove the warning notices.
(1) Make sure that the work area is clean and clear of tools and other items.
(2) Remove the access platform(s).
(3) Remove the warning notices.
Air Intake-Cowl Interphone-Jack