(5)
 Remove the warning placard from the AFT cargo-compartment door.

 (6)
 Close the AFT cargo-compartment door 826 (Ref. TASK 52-30-00-860-002).

 **ON A/C ALL
 Subtask 21-31-51-862-055
 B. De-energize the aircraft electrical circuits (Ref. TASK 24-41-00-862-002).
 1EFF : ALL 1 21-31-51Page A404 1 1 Aug 01/05R 1 1 1CES 1

 TASK 21-31-51-000-005 Removal of the Outflow Valve (10HL) - Feedback Assembly 10HL-6 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
__________________
 NOTE : This procedure is only applicable for Outflow Valve Part Numbers

____
 9023-15703-81 and previous.

 2. Job Set-up Information
______________________
 A. Fixtures, Tools, Test and Support Equipment
 -------------------------------------------------------------------------------REFERENCE QTY DESIGNATION -------------------------------------------------------------------------------
No specific blanking caps
 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 25-55-12-000-003 Removal of the Sidewall Panels in the AFT Cargo Compartment - FR59/FR65 52-30-00-860-001 Open the FWD or AFT Cargo-Compartment Door with the Yellow Electric Pump
 **ON A/C 001-049, 051-099, 101-105,
 21-31-51-991-008 Fig. 406 R **ON A/C 106-149, 151-199, 201-299, 301-399, 401-499,
 21-31-51-991-008-A Fig. 406A
R 1EFF : ALL 1 21-31-51Page A405 1 1 Aug 01/05 1 1 1CES 1

 **ON A/C ALL
 3. Job Set-up__________
 Subtask 21-31-51-861-056
 A. Energize the aircraft electrical circuits (Ref. TASK 24-41-00-861-002).
 Subtask 21-31-51-865-061
 B. Open, safety and tag this(these) circuit breaker(s):
R  -------------------------------------------------------------------------------PANEL DESIGNATION IDENT. LOCATION -------------------------------------------------------------------------------49VU AIR COND/CAB/PRESS/CTL1 1HL D09 
R  **ON A/C 001-049, 051-099, 101-149, 151-199, 201-299, 301-399, 
R  122VU AIR COND/AFT CARGO VENT/FAN  30HN  S22 
R  **ON A/C ALL 
R R R  122VU AIR COND/LAV/GALLEY VENT CTL/EXTRACT FAN/SPLY 122VU AIR COND/CAB PRESS/CTL/MAN 122VU AIR COND/CAB PRESS/CTL/2  6HU 3HL 2HL  U19 Y23 Y22
 **ON A/C 001-049, 051-061, 101-102,
 Subtask 21-31-51-010-054
 C. Get Access (Ref. Fig. 406/TASK 21-31-51-991-008)
 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.

 Feedback Assembly 10HL-6 - Component Location
 Figure 406/TASK 21-31-51-991-008

R 1EFF : 001-049, 051-099, 101-105, 1 21-31-51Page A407 1 1 Aug 01/05 1 1 1CES 1

 WARNING : OPEN THE ACCESS DOOR AND MAKE SURE IT STAYS OPEN.
_______ ATTACH A WARNING NOTICE TO THE ACCESS DOOR TO TELL PERSONS NOT TO CLOSE IT. THIS IS TO PREVENT ACCIDENTAL PRESSURIZATION OF THE AIRCRAFT BY THE AIR CONDITIONING SYSTEM IF ALL THE OTHER CABIN OPENINGS ARE CLOSED. PRESSURIZATION OF THE AIRCRAFT CAN BE DANGEROUS. IT CAN CAUSE A DOOR TO OPEN WITH EXPLOSIVE FORCE WHICH CAN CAUSE INJURY AND/OR DAMAGE.
 (1)
 Open the AFT cargo-compartment door 826 (Ref. TASK 52-30-00-860-001).

 (2)
 Put the access platform in position at the AFT cargo-compartment door

 826.

 (3)
 Remove the access panel 162CW (Ref. TASK 25-55-12-000-003).

R **ON A/C 062-099, 103-149, 151-199, 201-299, 301-399, 401-499,
 Subtask 21-31-51-010-054-A
 C. Get Access
 **ON A/C 062-099, 103-105,
 (Ref. Fig. 406/TASK 21-31-51-991-008)

R **ON A/C 106-149, 151-199, 201-299, 301-399, 401-499,
 (Ref. Fig. 406A/TASK 21-31-51-991-008-A)

R **ON A/C 062-099, 103-149, 151-199, 201-299, 301-399, 401-499,
 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.
　
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