TM 11-6605-202-12/TO 5N3-3-10-1
TROUBLESHOOTING
SECTION CONTENTS
PAGE
GENERAL
TROUBLESHOOTING TABLE
GENERAL
4-13. Troubleshooting and replacement of parts at the AVUM level are limited to those operations that
you can perform while the compass set is installed in the aircraft. This includes inspection of com-
ponents, cable connections, and replacement of a faulty source.
The level of disassembly is defined by the Maintenance Allocation Chart (MAC) contained in Appendix B.
Any replacement of parts beyond your scope must be performed after removal of the unit from the aircraft.
When using the troubleshooting tables, you will observe that the chart contains three columns, plus the
step indication, as shown in the sample below.
MALFUNCTION
This column lists the fault you observed when performing your
operating procedures.
TEST OR INSPECTION
This column directs you to the probable area causing the malfunction.
CORRECTIVE ACTION
This column tells you what to do to correct the problem.
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