(a)  Do this task: Weather Radar (WXR) System -Operational Test, AMM TASK 34-43-00-710-802-001 or Weather Radar (WXR) System -Operational Test, AMM TASK 34-43-00-710-803-002.
1) If the aural warnings are heard, then you corrected the fault.
2) If the aural warnings are not heard, then continue.
(2) Replace the autothrottle microswitch, M1766 (M1767).
These are the tasks:
Switch Installation, AMM TASK 76-11-07-400-801-F00,
Switch Removal, AMM TASK 76-11-07-020-801-F00.

(a)  Do this task: Weather Radar (WXR) System -Operational Test, AMM TASK 34-43-00-710-802-001 or Weather Radar (WXR) System -Operational Test, AMM TASK 34-43-00-710-803-002.
1) If the aural warnings are heard, then you corrected the fault.
2) If the aural warnings are not heard, then continue.
(3) Replace the weather radar receiver/transmitter, M101.
These are the tasks:
Weather Radar Receiver/Transmitter Removal, AMM TASK 34-43-41-000-801,
Weather Radar Receiver/Transmitter Installation, AMM TASK 34-43-41-400-801.

(a)  Do this task: Weather Radar (WXR) System -Operational Test, AMM TASK 34-43-00-710-802-001 or Weather Radar (WXR) System -Operational Test, AMM TASK 34-43-00-710-803-002.
1) If the aural warnings are heard, then you corrected the fault.
2) If the aural warnings are not heard, then continue.
EFFECTIVITY SIL ALL  34-43 TASK 820 
D633A103-SIL BOEING PROPRIETARY -Copyright # Unpublished Work -See title page for details  Page 262 Feb 15/2011 

SIL 014, 015, 020
(4) Replace the Left (Right) weather radar receiver/transmitter, M101 (M460). These are the tasks: Weather Radar Receiver/Transmitter Removal, AMM TASK 34-43-41-000-801, Weather Radar Receiver/Transmitter Installation, AMM TASK 34-43-41-400-801.
(a)  Do this task: Weather Radar (WXR) System -Operational Test, AMM
TASK 34-43-00-710-802-001.

1) If the aural warnings are heard, then you corrected the fault.
2) If the aural warnings are not heard, then continue.

SIL ALL
(5)  Do this check of the wiring between the weather radar receiver/transmitter and the remote electronic unit::
(a)  
Remove the weather radar receiver/transmitter, M101. To remove it, do this task: Weather Radar Receiver/Transmitter Removal, AMM TASK 34-43-41-000-801.