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

______________________________________________________________________
 TASK 34-42-11-000-001
 Removal of the Radio Altimeter Antennas 5SA1, 5SA2, 6SA1, 6SA2
 1.
 Reason for the Job

__________________
 Self Explanatory

 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 nonmetallic scraper
 No specific 1 SCRAPER - NON METALLIC

 B. Referenced Information
 -------------------------------------------------------------------------------
REFERENCE  DESIGNATION
 -------------------------------------------------------------------------------
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
 1EFF : ALL 1 34-42-11Page 401 1 1 Aug 01/05 1 1 1CES 1

 3. Job Set-up
__________
 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
_________
 **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)
 1EFF : ALL 1 34-42-11Page 402 1 1 Aug 01/05 1 1 1CES 1

 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
 1EFF : 1 1 1CES  ALL  1 111 34-42-11 Page 405 Feb 01/05

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
_______
 LOCKWIRE CAN CUT OR BLIND YOU.

 NOTE : The procedure is the same for the radio altimeter antennas 5SA1,
____
 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

____
 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)
 1EFF : ALL 1 34-42-11Page 406 1 1 Aug 01/05 1 1 1CES 1