(3)
 Remove the access platform(s).

 (4)
 Close the FWD cargo-compartment door 825 (Ref. TASK 52-30-00-860-002).

 (5) Make an entry in the log book to record the deactivation.
 Subtask 21-63-00-865-059

 B. Remove the safety clip(s) and the tag(s) and close this(these) circuit breaker(s): 1HK, 2HK, 3HK, 4HK.
R 1EFF : 001-049, 051-099, 101-149, 151-199, 1 21-63-00Page 406 1201-299, 301-399, 1Aug 01/05 1 1 1CES 1 Subtask 21-63-00-862-050

 C. De-enerize the aircraft electrical circuits (Ref. TASK 24-41-00-862-002).
R 1EFF : 001-049, 051-099, 101-149, 151-199, 1 21-63-00Page 407 1201-299, 301-399, 1Aug 01/05 1 1 1CES 1 TASK 21-63-00-440-001

 Reactivation of the Trim Air Valve
 WARNING : MAKE SURE THAT AIR IS NOT SUPPLIED TO THE AIR CONDITIONING SYSTEM
_______ FROM THE MAIN ENGINE, THE APU OR A GROUND SOURCE. HOT COMPRESSED AIR CAN CAUSE INJURY TO PERSONNEL.
 1. Reason for the Job
__________________
 Refer to the MMEL TASK: 21-63-02 a)
 Cockpit and Cabin Temperature Control
 Trim Air Valve

 2. Job Set-up Information
______________________
 A. Fixtures, Tools, Test and Support Equipment
 -------------------------------------------------------------------------------REFERENCE QTY DESIGNATION -------------------------------------------------------------------------------
No specific circuit breaker(s) safety clip(s) No specific access platform 2 m (6 ft. 7 in.)
 B. Referenced Information
 -------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
24-41-00-861-002 Energize the Aircraft Electrical Circuits from the External Power 24-41-00-862-002 De-energize the Aircraft Electrical Circuits Supplied
 from the External Power 25-54-12-000-001 Removal of the FWD Cargo Compartment Partition FR34 25-54-12-400-001 Installation of the FWD Cargo Compartment Partition
 FR34 52-30-00-860-001 Open the FWD or AFT Cargo-Compartment Door with the Yellow Electric Pump 52-30-00-860-002 Close the FWD or AFT Cargo-Compartment Door with the Yellow Electric Pump TSM ATA 21 (for corrective action)
R 1EFF : 001-049, 051-099, 101-149, 151-199, 1 21-63-00Page 408 1201-299, 301-399, 1Aug 01/05 1 1 1CES 1

 -------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
**ON A/C 001-049, 051-061, 101-105, 151-152, 201-204,
R  21-63-00-991-002 Fig. 401 **ON A/C 062-099, 106-149, 153-199, 205-299, 301-399,
R  21-63-00-991-002-A Fig. 401A **ON A/C 001-049, 051-099, 101-149, 151-199, 201-299, 301-399,
 3. Job Set-up__________ **ON A/C 001-049, 051-061, 101-105, 151-152, 201-204,
R  (Ref. Fig. 401/TASK 21-63-00-991-002) **ON A/C 062-099, 106-149, 153-199, 205-299, 301-399,
R  (Ref. Fig. 401A/TASK 21-63-00-991-002-A) **ON A/C 001-049, 051-099, 101-149, 151-199, 201-299, 301-399,
 Subtask 21-63-00-861-051
 A. Energize the aircraft electrical circuits (Ref. TASK 24-41-00-861-002). Subtask 21-63-00-010-056
 B. Get Access
 WARNING : DO NOT OPEN OR GO NEAR PRESSURE-SEALED DOORS WHEN THE AIRCRAFT_______ IS PRESSURIZED. A PRESSURE-SEALED DOOR THAT OPENS WHEN THE AIRCRAFT IS PRESSURIZED. - WILL CAUSE EXPLOSIVE DECOMPRESSION. - CAN KILL OR CAUSE INJURY TO PERSONS AND/OR CAUSE DAMAGE TO THE AIRCRAFT/EQUIPMENT. 

R 1EFF : 001-049, 051-099, 101-149, 151-199, 1 21-63-00Page 409 1201-299, 301-399, 1Aug 01/05 1 1 1CES 1

 (1)
 Open the FWD cargo-compartment door 825 (Ref. TASK 52-30-00-860-001).

 (2)
 Put the access platform at the FWD cargo-compartment door 825.

 (3)
 Remove the access panels 132PW and 131NW (Ref. TASK 25-54-12-000-001).

 Subtask 21-63-00-865-051
 C. Open, safety and tag this(these) circuit breaker(s):
 -------------------------------------------------------------------------------
PANEL DESIGNATION IDENT. LOCATION
 -------------------------------------------------------------------------------
122VU AIR COND/ZONE TEMP CTL/28VDC/SYS2 4HK V20 122VU AIR COND/ZONE TEMP CTL/28VDC/SYS1 3HK V19 122VU AIR COND/ZONE TEMP CTL/115VAC/SYS2 2HK V18 122VU AIR COND/ZONE TEMP CTL/115VAC/SYS1 1HK V17
 4. Procedure
_________
 **ON A/C 001-049, 051-061, 101-105, 151-152, 201-204,

 (Ref. Fig. 401/TASK 21-63-00-991-002) R **ON A/C 062-099, 106-149, 153-199, 205-299, 301-399,
 (Ref. Fig. 401A/TASK 21-63-00-991-002-A) R **ON A/C 001-049, 051-099, 101-149, 151-199, 201-299, 301-399,
　
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