TM 55-1520-240-T
18-1.6 GPS CONTROL DISPLAY UNIT (CDU) DISPLAYS "FAIL" MESSAGE
18-1.6
(Continued)
GPS CDU DISPLAYS "FAIL" MESSAGE WHEN ATTEMPTING TO LOAD KEYS
USING DATA LOADER MODULE OR KYK-13 FILL DEVICE
Note Error Message and Report
to Organizational Maintenance
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Change 18 18-23
