1EFF : ALL 1 34-42-00Page 516 1 1 Aug 01/02 1 1 1CES 1 ANTENNA - RADIO ALTIMETER (5SA1,5SA2,6SA1,6SA2) - REMOVAL/INSTALLATION
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TASK 34-42-11-000-001
Removal of the Radio Altimeter Antennas 5SA1, 5SA2, 6SA1, 6SA2
1.
Reason for the Job
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Self Explanatory
2.
Job Set-up Information
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A. Fixtures, Tools, Test and Support Equipment
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REFERENCE QTY DESIGNATION
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No specific blanking caps
No specific circuit breaker(s) safety clip(s)
No specific nonmetallic scraper
No specific 1 SCRAPER - NON METALLIC
B. Referenced Information
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REFERENCE DESIGNATION
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24-42-00-861-001 Energize the Ground Service Network from the External Power
**ON A/C 001-049, 051-060, 101-101,
34-42-11-991-001 Fig. 401 R **ON A/C 061-099, 102-149, 151-199, 201-299, 301-399, 401-499,
34-42-11-991-001-A Fig. 401A
**ON A/C ALL
34-42-11-991-003 Fig. 402
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3. Job Set-up
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Subtask 34-42-11-861-050
A. Energize the ground service network
(Ref. TASK 24-42-00-861-001).
Subtask 34-42-11-865-050
B. Open, safety and tag this(these) circuit breaker(s):
-------------------------------------------------------------------------------PANEL DESIGNATION IDENT. LOCATION -------------------------------------------------------------------------------FOR 5SA1(6SA1)
121VU COM NAV/RAD ALTM/1 1SA1 K11 FOR 5SA2(6SA2) 121VU COM NAV/RAD ALTM/2 1SA2 K12
4. Procedure
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**ON A/C 001-049, 051-060, 101-101,
(Ref. Fig. 401/TASK 34-42-11-991-001) R **ON A/C 061-099, 102-149, 151-199, 201-299, 301-399, 401-499,
(Ref. Fig. 401A/TASK 34-42-11-991-001-A)
**ON A/C ALL
(Ref. Fig. 402/TASK 34-42-11-991-003)
Subtask 34-42-11-020-051
A. Removal of the Radio Altimeter Antenna
**ON A/C 001-049, 051-060, 101-101,
(Ref. Fig. 401/TASK 34-42-11-991-001)
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Radio Altimeter Antennas
Figure 401/TASK 34-42-11-991-001
R 1EFF : 001-049, 051-060, 101-101, 1 34-42-11Page 403 1 1 May 01/05 1 1 1CES 1
Radio Altimeter Antennas
Figure 401A/TASK 34-42-11-991-001-A
R 1EFF : 061-099, 102-149, 151-199, 201-299, 1 34-42-11Page 404 1301-399, 401-499, 1Aug 01/05 1 1 1CES 1
R Radio Altimeter Antennas (Alternative) Figure 402/TASK 34-42-11-991-003
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R **ON A/C 061-099, 102-149, 151-199, 201-299, 301-399, 401-499,
(Ref. Fig. 401A/TASK 34-42-11-991-001-A)
**ON A/C ALL
WARNING : CUT, REMOVE AND DISCARD THE LOCKWIRE AS YOU DO THE TASK. LOOSE
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LOCKWIRE CAN CUT OR BLIND YOU.
NOTE : The procedure is the same for the radio altimeter antennas 5SA1,
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5SA2, 6SA1, 6SA2.
(1)
Remove the sealant from the heads of the screws (5) with a nonmetallic scraper.
(2)
Remove the attachment screws (5) from the antenna (4).
(3)
Pull the antenna (4) carefully away until you can see the coaxial connector (2).
(4)
Remove and discard the lockwire from the coaxial connector (2), if installed.
(5)
Disconnect the coaxial connector (2) from the antenna connector (3).
(6)
Remove the antenna (4).
(7)
Put blanking caps on the disconnected electrical connectors.
(8)
Remove the O-ring (6). NOTE : If the O-ring (6) is in good condition you can retain it for
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subsequent installation.
(9) Remove the teflon gasket (8).
Subtask 34-42-11-020-055
B. Removal of the Radio Altimeter Antenna R **ON A/C 061-099, 102-149, 151-199, 201-299, 301-399, 401-499,
(Ref. Fig. 401A/TASK 34-42-11-991-001-A)
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