Subtask 23-44-41-865-055
 B. Remove the safety clip(s) and the tag(s) and close this(these) circuit breaker(s):
 -------------------------------------------------------------------------------
PANEL DESIGNATION IDENT. LOCATION
 -------------------------------------------------------------------------------
**ON A/C 001-049, 051-099, 101-105, 201-299,
 49VU COM/CIDS/DIR 1 AND 2/ESS 150RH G02 R **ON A/C 106-149, 151-199, 301-399, 401-499,
 49VU COM DIR ESS/1 150RH G01 **ON A/C 001-049, 051-099, 101-105, 151-199, 201-299,
 121VU COM NAV/CIDS/DIR 1 AND 2/NORM 151RH M05 **ON A/C 301-399,
 121VU COM NAV/CIDS/DIR NORM/1 151RH M06
 1EFF : ALL 1 23-44-41Page 417 1 1 Aug 01/05 1 1 1CES 1 **ON A/C ALL

 Subtask 23-44-41-710-053
 C. Do the operational test of the service interphone system (Ref. TASK 23-44-00-700-001).
 5. Close-up
________ Subtask 23-44-41-860-060
 A. Put the aircraft back to its initial configuration.
 (1)
 Make sure that the work area is clean and clear of tool(s) and other items.

 (2)
 Remove the access platform(s).

 (3)
 Remove the warning notices.

 1EFF : ALL 1 23-44-41Page 418 1 1 Aug 01/05 1 1 1CES 1

R R  Air Intake Cowl Interphone Jack Figure 402/TASK 23-44-41-991-410
 1EFF : 1 1 1CES  ALL  1 111 23-44-41 Page 419 Aug 01/05

 ISOLATION UNIT - SERVICE INTERPHONE JACKS (4RJ1,4RJ2,4RJ3,4RJ4,4RJ5)
____________________________________________________________________ REMOVAL/INSTALLATION
____________________
 TASK 23-44-42-000-001
 Removal of the Isolation Units
 1. Reason for the Job
__________________
 Self Explanatory
 2. Job Set-up Information
______________________
 A. Fixtures, Tools, Test and Support Equipment
 -------------------------------------------------------------------------------REFERENCE QTY DESIGNATION
 -------------------------------------------------------------------------------
No specific circuit breaker(s) safety clip(s)
 FOR FIN 4RJ1
 No specific access platform 2.0 m (6 ft. 7 in.)
 FOR FIN 4RJ2
 No specific access platform 2.0 m (6 ft. 7 in.)
 FOR FIN 4RJ3, 4RJ4
 No specific access platform 2.0 m (6 ft. 7 in.)
 FOR FIN 4RJ5
 No specific access platform 3.5 m (11 ft. 6 in.)

 B. Referenced Information
 -------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
23-44-42-991-001 Fig. 401 23-44-42-991-002 Fig. 402 23-44-42-991-003 Fig. 403 23-44-42-991-004 Fig. 404 23-44-42-991-005 Fig. 405 FOR FIN 4RJ3, 4RJ4 52-30-00-860-001 Open the FWD or AFT Cargo-Compartment Door with the
 Yellow Electric Pump
R 1EFF : 106-149, 301-399, 401-499, 1 23-44-42Page 401 1 1 Aug 01/05 1 1 1CES 1

 3. Job Set-up__________
 Subtask 23-44-42-010-050
 A. Get Access 
R  (1) FOR 4RJ1
 (a) Put the access platform in position below the access door 822.
 (b) Open the access door 822 to get access to the battery
 compartment. 
R  (2) FOR 4RJ2
 (a) Put the access platform in position below the access door 824.
 (b) Open the access door 824 to get access to the avionics
 compartment. 
R  (3) FOR 4RJ3, 4RJ4
 (a) Open the FWD cargo-compartment door and safety it with the
 actuator safety locks (Ref. TASK 52-30-00-860-001).
 (b) Put the access platform in position below the opened FWD cargo
 compartment door.
 (c) Remove the partition 132PW at FR34 of the FWD cargo compartment. 
R  (4) FOR 4RJ5
 (a) Put the access platform in position below the access door 321AR.
 (b) Open the access door 312AR. 

R 1EFF : 106-149, 301-399, 401-499, 1 23-44-42Page 402 1 1 Aug 01/05 1 1 1CES 1

 Subtask 23-44-42-865-050
 B. Open, safety and tag this(these) circuit breaker(s): -------------------------------------------------------------------------------PANEL DESIGNATION IDENT. LOCATION -------------------------------------------------------------------------------
R  **ON A/C 106-149, 401-499,
R  49VU COM/CIDS/DIR ESS/2 **ON A/C 106-149, 301-399, 401-499, 157RH  G02 
49VU COM DIR ESS/1 **ON A/C 301-399, 150RH  G01
R  49VU COM DIR ESS/2 **ON A/C 106-149, 401-499, 157RH  G02 
121VU COM NAV/CIDS/DIR NORM/2 **ON A/C 301-399, 156RH  M06
　
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