DOC AIRBUS | AMM A320FRemoval of the CJ11R Harness [CFMI]
TASK 73-21-50-000-002-A
Removal of the CJ11R Harness
1. Reason for the Job
Self explanatory
2. Job Set-up Information
A. Fixtures, Tools, Test and Support Equipment
B. Work Zones and Access Panels
C. Referenced Information
3. Job Set-up
Subtask 73-21-50-941-051-A ** ON A/C NOT FOR ALL
Subtask 73-21-50-020-093-A ** ON A/C NOT FOR ALL
[Rev.10 from 2021]
2026.04.01 02:56:12 UTC
Removal of the CJ11R Harness
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 | CAP - BLANKING |
| No specific | AR | WARNING NOTICE(S) |
| ZONE/ACCESS | ZONE DESCRIPTION |
|---|---|
| FOR [1000EM1] (ENGINE-1) | |
| 437AL, 438AR, 452AR | |
| FOR [1000EM2] (ENGINE-2) | |
| 447AL, 448AR, 462AR | |
| REFERENCE | DESIGNATION |
|---|---|
| TASK 71-13-00-010-040-A | Opening of the Fan Cowl Doors |
| TASK 72-23-00-000-005-A | Removal of the Fan Duct Panels |
| 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 |
CJ11R HarnessSubtask 73-21-50-941-051-A ** ON A/C NOT FOR ALL
A. Safety Precautions
(1) On the center pedestal, on the ENG panel 115VU:
(a) Put a WARNING NOTICE(S) to tell persons not to start the engine.
(2) Make sure that the engine 1(2) shutdown occurred not less than 5 minutes before you do this procedure.
(3) On the overhead maintenance panel 50VU:
(a) Make sure that the ON legend of the ENG/FADEC GND PWR/1(2) pushbutton switch is off.
(b) Put a WARNING NOTICE(S) to tell persons not to energize the FADEC 1(2). the VSV position
Subtask 73-21-50-010-051-A ** ON A/C NOT FOR ALL (1) On the center pedestal, on the ENG panel 115VU:
(a) Put a WARNING NOTICE(S) to tell persons not to start the engine.
(2) Make sure that the engine 1(2) shutdown occurred not less than 5 minutes before you do this procedure.
(3) On the overhead maintenance panel 50VU:
(a) Make sure that the ON legend of the ENG/FADEC GND PWR/1(2) pushbutton switch is off.
(b) Put a WARNING NOTICE(S) to tell persons not to energize the FADEC 1(2). the VSV position
B. Open the fan cowl doors (Ref. AMM TASK 71-13-00-010-040):
(1) FOR [1000EM1] (ENGINE-1)
437AL 438AR
(2) FOR [1000EM2] (ENGINE-2)
447AL 448AR
Subtask 73-21-50-040-052-A ** ON A/C NOT FOR ALL Subtask 73-21-50-010-067-A ** ON A/C NOT FOR ALL (1) FOR [1000EM1] (ENGINE-1)
437AL 438AR
(2) FOR [1000EM2] (ENGINE-2)
447AL 448AR
D. Open the right thrust reverser door (Ref. AMM TASK 78-36-00-010-040):
(1) FOR [1000EM1] (ENGINE-1)
452AR
(2) FOR [1000EM2] (ENGINE-2)
462AR
4. Procedure(1) FOR [1000EM1] (ENGINE-1)
452AR
(2) FOR [1000EM2] (ENGINE-2)
462AR
Subtask 73-21-50-020-093-A ** ON A/C NOT FOR ALL
A. Removal of the CJ11R Harness
(1) Remove the fan duct panels over the T25 sensor (Ref. AMM TASK 72-23-00-000-005).
(2) Disconnect the CJ11R harness connector from the T25 temperature sensor.
PRE SB CFM56-5 75-031
(3) Disconnect the electrical harness from the RACC valve position sensor, the HPTACC valve position sensor, LPTACC valve position sensor and the VSV position sensor.
POST SB CFM56-5 75-031
(4) Disconnect the electrical harness from the HPTACC valve position sensor, LPTACC valve position sensor and the VSV position sensor.
END OF SB CFM56-5 75-031
PRE SB 72-021
(5) Disconnect the connector from the J11 harness connector in the 6 o'clock junction box. Remove the 2 bolts (27) and nuts (26) which attach CJ11R connector flange to the right side (aft looking forward) of 6 o'clock junction box (detail A).
POST SB 72-021
(6) Disconnect the connector from the J11 harness connector in the 6 o'clock junction box. Remove the 2 bolts (27) which attach the CJ11R connector flange to the right side (aft looking forward) of the 6 o'clock junction box (detail A).
END OF SB 72-021
(7) Remove the bolt (3) which attaches the CJ11R connector flange to fan frame center hub at the 5 o'clock (T25 sensor) location (detail B).
(8) Remove the loop clamps that attach electrical harness. To do this, remove the bolts and nuts from the items which follow:
(a) The air scoop forward the bracket at the 4 o'clock location on the fan frame center hub (detail C).
(b) The brackets at the 3 o'clock location on the core engine (detail D).
PRE SB CFM56-5 75-031
(c) The bracket at the 2 o'clock location on the core engine (details E and F).
POST SB CFM56-5 75-031
(d) Not applicable
END OF SB CFM56-5 75-031
(9) Remove the nut (15) and bolt (14) which attach the CJ11R junction box to the brackets on air tube at the 2:30 o'clock location (detail G).
(10) Remove the 2 bolts (17) and nuts (16) which attach the harness junction box to the bracket at the 3 o'clock location on the fan frame center hub (detail H).
(11) Remove the harness.
(12) Put the CAP-BLANKING on each disconnected electrical connector and receptacle.
(13) Remove all the clamps from the harness.
(1) Remove the fan duct panels over the T25 sensor (Ref. AMM TASK 72-23-00-000-005).
(2) Disconnect the CJ11R harness connector from the T25 temperature sensor.
PRE SB CFM56-5 75-031
(3) Disconnect the electrical harness from the RACC valve position sensor, the HPTACC valve position sensor, LPTACC valve position sensor and the VSV position sensor.
POST SB CFM56-5 75-031
(4) Disconnect the electrical harness from the HPTACC valve position sensor, LPTACC valve position sensor and the VSV position sensor.
END OF SB CFM56-5 75-031
PRE SB 72-021
(5) Disconnect the connector from the J11 harness connector in the 6 o'clock junction box. Remove the 2 bolts (27) and nuts (26) which attach CJ11R connector flange to the right side (aft looking forward) of 6 o'clock junction box (detail A).
POST SB 72-021
(6) Disconnect the connector from the J11 harness connector in the 6 o'clock junction box. Remove the 2 bolts (27) which attach the CJ11R connector flange to the right side (aft looking forward) of the 6 o'clock junction box (detail A).
END OF SB 72-021
(7) Remove the bolt (3) which attaches the CJ11R connector flange to fan frame center hub at the 5 o'clock (T25 sensor) location (detail B).
(8) Remove the loop clamps that attach electrical harness. To do this, remove the bolts and nuts from the items which follow:
(a) The air scoop forward the bracket at the 4 o'clock location on the fan frame center hub (detail C).
(b) The brackets at the 3 o'clock location on the core engine (detail D).
PRE SB CFM56-5 75-031
(c) The bracket at the 2 o'clock location on the core engine (details E and F).
POST SB CFM56-5 75-031
(d) Not applicable
END OF SB CFM56-5 75-031
(9) Remove the nut (15) and bolt (14) which attach the CJ11R junction box to the brackets on air tube at the 2:30 o'clock location (detail G).
(10) Remove the 2 bolts (17) and nuts (16) which attach the harness junction box to the bracket at the 3 o'clock location on the fan frame center hub (detail H).
(11) Remove the harness.
(12) Put the CAP-BLANKING on each disconnected electrical connector and receptacle.
(13) Remove all the clamps from the harness.