R **ON A/C 001-049, 051-099, 101-149, 151-199, 201-299, 401-499,
123VU AVNCS VENT/EXTC/FAN 2HQ AE02 **ON A/C ALL
123VU AVNCS VENT/BLOWER/FAN 1HQ AD10 **ON A/C 301-399,
123VU AVNCS VENT/EXTC/FAN 2HQ AC04 **ON A/C ALL
Subtask 21-26-42-010-060
C. Get Access
(1)
Put the access platform in position at the access door 824.
(2)
Open the access door 824.
(3)
Remove the access panel 128EG (Ref. TASK 53-12-13-000-001).
4. Procedure
_________ Subtask 21-26-42-020-056
A. Removal of the Avionics Equipment Blowing-Duct
(Ref. Fig. 402/TASK 21-26-42-991-009)
(1)
Remove the clamp (16) and disconnect the drain hose (15) from the duct (14).
(2)
Remove the clamps (12) and (17).
(3)
Hold the duct (14) and remove the clamp (13).
(4)
Remove the duct (14) and discard the O-ring (18).
(5) Put blanking plugs on the disconnected line ends. Subtask 21-26-42-020-057
B. Removal of the Avionics Equipment Extraction-Ducts
(Ref. Fig. 403/TASK 21-26-42-991-010)
(1)
Remove the clamps (5) and (3).
(2)
Remove the clamps (6) and the flexible sleeve (11).
(3)
Remove the duct (4) and discard the O-ring (2).
(4)
Remove the clamps (9) and (8).
(5)
Remove the duct (10) and discard the O-ring (7).
(6)
Put blanking plugs on the disconnected line ends.
1EFF : ALL 1 21-26-42Page 411 1 1 May 01/05R 1 1 1CES 1
Avionics Equipment Blowing-Duct Figure 402/TASK 21-26-42-991-009
1EFF : 1 1R 1CES ALL 1 11 1 21-26-42 Page 412 May 01/05
Avionics Equipment Extraction-Ducts Figure 403/TASK 21-26-42-991-010
1EFF : 1 1R 1CES ALL 1 11 1 21-26-42 Page 413 May 01/05
TASK 21-26-42-400-002
Installation of the Avionics Equipment Blowing and Extraction Ducts
1. Reason for the Job
__________________
To do the maintenance of the strake on the right side of the fuselage.
2. Job Set-up Information
______________________
A. Fixtures, Tools, Test and Support Equipment
-------------------------------------------------------------------------------
REFERENCE QTY DESIGNATION
-------------------------------------------------------------------------------
No specific access platform 1.60 m (5 ft. 3 in.)
B. Expendable Parts
-------------------------------------------------------------------------------
FIG.ITEM |DESIGNATION |IPC-CSN
-------------------------------------------------------------------------------
2 O-ring 21-26-01 08A-030 2 O-ring 21-26-01 08B-030
R 7 O-ring 21-26-01 14B-410 7 O-ring 21-26-01 14D-410 7 O-ring 21-26-01 14F-410 18 O-ring 21-26-01 08A-030 18 O-ring 21-26-01 08B-030
C. Referenced Information
-------------------------------------------------------------------------------
REFERENCE DESIGNATION
-------------------------------------------------------------------------------
24-42-00-861-001 Energize the Ground Service Network from the External Power 24-42-00-862-001 De-energize the Ground Service Network Supplied from
the External Power 52-41-00-410-002 Close the Avionics Compartment Doors after Access 53-12-13-000-001 Removal of the avionics compartment floor panels 53-12-13-400-001 Installation of the avionics compartment floor panels 21-26-42-991-009 Fig. 402 21-26-42-991-010 Fig. 403
3. Job Set-up
__________
CAUTION : USE ONLY THE GROUND SERVICE NETWORK TO SUPPLY ELECTRICITY BECAUSE
_______ THE AVIONICS VENTILATION SYSTEM IS NOT SERVICEABLE. IF YOU ENERGIZE THE AIRCRAFT ELECTRICAL CIRCUITS WITHOUT THE VENTILATION SYSTEM YOU WILL CAUSE DAMAGE TO ELECTRICAL EQUIPMENT.
Subtask 21-26-42-860-055
A. Aircraft Maintenance Configuration
(1) Make sure that the ground service network is energized (Ref. TASK 24-42-00-861-001).
Subtask 21-26-42-865-060
B. Make sure that this(these) circuit breaker(s) is(are) open, safetied and tagged
-------------------------------------------------------------------------------PANEL DESIGNATION IDENT. LOCATION -------------------------------------------------------------------------------49VU AIR COND/AVNCS VENT/CTL 6HQ D06 49VU AIR COND/AVNCS VENT/CTL 5HQ D05 122VU AIR COND/AVNCS/VENT/MONG 3HQ Y17
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