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(2013) Service Bulletin 1368 Rev B: Software Upgrade for GDU 620 Software Version 6.21 and GAD 43e Software Version 2.20 (Rev. B)

CERTIFICATION APPROVAL: TSO Authorization

COMPLIANCE: This Service Bulletin is mandatory.

PURPOSE: This is a re-issue of a previous Software Service Bulletin announcing the availability of GDU 620 Software Version 6.21, GAD 43e Software Version 2.20, and upgraded GRS 77 Software Version 3.04.

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