INTRODUCTION - TM-9-4120-423-14-P0305

TM9 4120-423-14&P

INTRODUCTION

This table lists all the common malfunctions that you may find with your equipment. Perform

the tests, inspections, and corrective actions in the order they appear in the table.

This table cannot list all the malfunctions that may occur, all the tests and inspections needed to

find the fault, or all the corrective actions needed to correct the fault. If the equipment

malfunction is not listed or actions listed do not correct the fault, refer to WP0010 for unit level

troubleshooting.

Troubleshooting by direct support maintenance pertains to procedures that can only be

performed at the direct support level.

The malfunction/symptom index (WP0066) is a quick reference index for finding

troubleshooting procedures. Associated with each symptom name is a work package sequence

number representing the starting point in a troubleshooting sequence. Should any one symptom

require more than one troubleshooting sequence to arrive at the most likely area of investigation,

the additional starting point numbers are presented.

As the troubleshooting activity progresses through to the conclusion of a particular sequence, a

reference is made to the next logical troubleshooting sequence by work package sequence

number or by referring to the malfunction/symptom index to locate the next failure symptom

work package. This type of activity continues until successful fault isolation is achieved.

0065 00-1