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Do the system test (Ref 34-53-
02 Adjustment/Test).
EFFECTIVITY
PW245
Use and disclosure shall be in accordance with the proprietary legend located on the cover of this document
GENERAL AEROSPACE
Boeing 737-300
MAINTENANCE MANUAL
If the system test failed REC
SENS,
FREQ, or SLS test, replace the
transponder
21/401) and do the system test
again. Is the test OK?
If the system test failed CODE
test, replace the transponder
(Ref 34-53-21/401) and do the
system test again. Is the test
OK?
If the system test failed ALT
RPTG test, make sure air data
computer(s)
operational (Ref 34-12-01/501)
and do the ALT RPTG test
again. Is the test OK?
Trouble shooting diagram for ATC Transponder No.1
Figure 101 (Sheet 2).
TRANSPONDER
YES
(Ref
34-53-
NO
YES
NO
YES
is
(are)
NO
DRAWING # GA-BC17-ATC-MM
System is operational
Examine the ATC antenna
cable.
Repair or replace as
necessary (Ref 34-53-11/401)
System is operational
Replace the ATC
Control
Panel (Ref 34-53-31/401)
System is operational
Replace the ATC transponder
(Ref 34-53-21/401) and do the
required test.
34-53-00GA
Page 103
AUG 15/10
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