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20-28-00-720-005 Check of the Electrical Bonding of the Different Components (But not the Fluid Systems and the Components Installed on Composite materials)
34-36-00-720-001 Functional Test of the ILS 34-36-00-720-002 Functional Test of the ILS 51-76-11-300-001 Repair of the Sealing 53-15-11-010-001 Opening of the Radome 110AL 53-15-11-410-001 Closing of the Radome 110AL 34-36-11-991-001 Fig. 401
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3. Job Set-up
__________
Subtask 34-36-11-860-050
A. Aircraft Maintenance Configuration
(1)
In the cockpit, make sure that the warning notice is in position on the center pedestal to tell persons not to operate the weather radar system.
(2)
Make sure that the access platform is in position below the radome in zone 110.
(3) Make sure that the radome 110AL is open (Ref. TASK 53-15-11-010-001). Subtask 34-36-11-865-051
B. Make sure that this(these) circuit breaker(s) is(are) open, safetied and tagged
-------------------------------------------------------------------------------PANEL DESIGNATION IDENT. LOCATION -------------------------------------------------------------------------------
R **ON A/C 001-004, 051-060,
49VU NAV/ILS/1 1RT1 G12 121VU COM NAV/ILS/2 1RT2 K09
**ON A/C ALL
121VU COM NAV/RADAR/1 5SQ1 K13 R **ON A/C 051-099,
R 121VU COM NAV/RADAR/2 5SQ2 K14
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R **ON A/C ALL
Subtask 34-36-11-160-050
C. Preparation for Installation
(1)
Precautions : NOTE : If you install the same antenna it is necessary to clean it
____ with CLEANING AGENTS (Material No. 11-003).
(2)
Remove the used sealant from the bulkhead with CLEANING AGENTS (Material No. 11-003) and a lint free cloth.
(3)
Clean the component interface and/or the adjacent area.
(4)
Do an inspection of the component interface and/or the adjacent area.
4. Procedure
_________ (Ref. Fig. 401/TASK 34-36-11-991-001) WARNING : OBEY THE MANUFACTURER'S INSTRUCTIONS WHEN YOU USE THE SPECIAL
_______
MATERIAL.
THIS MATERIAL IS DANGEROUS.
CAUTION : MAKE SURE THAT YOU DO NOT DAMAGE THE FUSELAGE WHEN YOU REMOVE THE
_______
SCUFF PLATES.
Subtask 34-36-11-420-050
A. Installation of the Localizer Antenna
(1)
On the bulkhead (2), apply SPECIAL MATERIALS (Material No. 05-013) with nonmetallic scraper to the attachment of the localizer antenna and to the support of the localizer antenna (1).
(2)
On the bulkhead (2), apply SEALANTS (Material No. 09-019) with a nonmetallic scraper to the attachment of the localizer antenna and to the support of the localizer antenna (1) (Ref. TASK 51-76-11-300-001).
NOTE : Make sure that the screw holes do not show any signs of
____
sealing compound.
(3) Remove the blanking caps from the coaxial connectors (3) and (6).
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(4)
Make sure that the coaxial connectors (3) and (6) are in the correct condition.
(5)
Put the O-ring (4) in the correct position on the antenna (1).
(6)
Connect the coaxial connectors (3) and (6) to the localizer antenna (1).
(7)
Attach the localizer antenna (1) with the screws (5).
(8)
Remove the unwanted sealing compound from the support of the localizer antenna (1) with a nonmetallic scraper.
(9)
Make sure that the bonding contact resistance between the antenna (1) and the fuselage structure (2) is not higher than 5 milliohms (Ref. TASK 20-28-00-720-005) .
(10) Make a seal around the support of the localizer antenna with SEALANTS (Material No. 09-016) (Ref. TASK 51-76-11-300-001).
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