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Page xii G3X Installation Manual
Revision A 190-01115-01
GSU 73 HARDWARE MOD LEVEL HISTORY
The following table identifies hardware modification (Mod) Levels for the GSU 73 LRU. Mod Levels
are listed with the associated service bulletin number, service bulletin date, and the purpose of the
modification. The table is current at the time of publication of this manual (see date on front cover) and is
subject to change without notice.
MOD
LEVEL
SERVICE
BULLETIN
NUMBER
SERVICE
BULLETIN
DATE
PURPOSE OF MODIFICATION
1 N/A N/A Improved HSCM accuracy when using +28V supply