(2)
Put the access platform at the AFT cargo-compartment door 826.
(3)
Remove the access panel (Ref. TASK 25-55-12-000-001):
(a) FOR 33HN
-162DW,
(4)
Remove the access panel (Ref. TASK 25-55-11-000-003):
(a) FOR 34HN
-151EW. R **ON A/C 151-199, 401-499,
Subtask 21-28-00-010-055-A
D. Get Access
(1)
Open the AFT cargo-compartment door 826 (Ref. TASK 52-30-00-860-001).
(2)
Put the access platform at the AFT cargo-compartment door 826.
R (3) Remove the access panel (Ref. TASK 25-55-12-000-001): (a) FOR 33HN - 162DW,
R (4) Remove the access panel (Ref. TASK 25-55-11-000-003): (a) FOR 34HN - 151VW.
**ON A/C ALL
4. Procedure_________
Subtask 21-28-00-040-053
A. Deactivation of the Cargo-Compartment Ventilation Isolation-Valves **ON A/C 001-049, 051-099, 101-149, 201-299, 301-399,
R (Ref. Fig. 401/TASK 21-28-00-991-002) **ON A/C 151-199, 401-499,
(Ref. Fig. 401A/TASK 21-28-00-991-002-A) **ON A/C ALL
(1) On the isolation valves (2) move the manual override levers (1) to the closed position. (2) Disconnect the electrical connectors (3), (33HN-A and 34 HN-A), and temporarily attach them to the aircraft structure. (3) Put blanking caps on the disconnected electrical connectors.
Cargo-Compartment Ventilation Isolation-Valves - Component Location
Figure 401/TASK 21-28-00-991-002
R 1EFF : 001-049, 051-099, 101-149, 201-299, 1 21-28-00Page 405 1301-399, 1May 01/05 1 1 1CES 1
Cargo-Compartment Ventilation Isolation-Valves - Component Location Figure 401A/TASK 21-28-00-991-002-A
R 1EFF : 151-199, 401-499, 1 21-28-00Page 406 1 1 Aug 01/05 1 1 1CES 1
5. Close-up
________
**ON A/C 001-049, 051-099, 101-149, 201-299, 301-399,
Subtask 21-28-00-410-056
A. Close Access
(1)
Make sure that the work area is clean and clear of tool(s) and other items.
(2)
Install the access panel (Ref. TASK 25-55-12-400-001):
(a) FOR 33HN
-162DW.
(3)
Install the access panel (Ref. TASK 25-55-11-400-003):
(a) FOR 34HN
-151EW.
(4)
Remove the access platform(s).
(5)
Close the AFT cargo-compartment door 826 (Ref. TASK 52-30-00-860-002).
(6) Make an entry in the aircraft log book to record the deactivation. R **ON A/C 151-199, 401-499,
Subtask 21-28-00-410-056-A
A. Close Access
(1) Make sure that the work area is clean and clear of tool(s) and other items.
(2)
Install the access panel (Ref. TASK 25-55-12-400-001): R (a) FOR 33HN
-162DW.
(3)
Install the access panel (Ref. TASK 25-55-11-400-003): R (a) FOR 34HN
-151VW.
(4)
Remove the access platform(s).
(5)
Close the AFT cargo-compartment door 826 (Ref. TASK 52-30-00-860-002).
(6) Make an entry in the aircraft log book to record the deactivation. **ON A/C ALL
Subtask 21-28-00-862-056
B. De-energize the aircraft electrical circuits (Ref. TASK 24-41-00-862-002).
TASK 21-28-00-440-002
Reactivation of the AFT Cargo-Compartment Ventilation Isolation-Valves 33HN, 34HN
1. Reason for the Job
__________________
Refer to the MMEL TASK: 21-28-05
Cargo Compartment Ventilation
AFT cargo
Isolation Valve
2. Job Set-up Information
______________________
A. Fixtures, Tools, Test and Support Equipment
-------------------------------------------------------------------------------REFERENCE QTY DESIGNATION -------------------------------------------------------------------------------
No specific access platform 2 m (6 ft. 7 in.)
B. Referenced Information
-------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
21-28-00-710-006 Operational Test of the AFT Cargo-Compartment Ventilation-System 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 25-55-11-000-003 Removal of the Sidewall Panels in the AFT Cargo Compartment - FR47/FR59 25-55-11-400-003 Installation of the Sidewall Panels in the AFT Cargo
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