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Aviation Alerts and Advisories

GDL 84/88 Software Upgrade to System Software Version 3.40

PRODUCTS AFFECTED:

All GDL 84/88 units are affected.

CERTIFICATION APPROVAL:

TSO Authorization

COMPLIANCE:

Mandatory for all GDL 88D (diversity) units with Software Version 3.34 only.

Optional for all other units.

WARRANTY INFORMATION:

This modification is warranty reimbursable for GDL 88D (diversity) units with Software Version 3.34 (with a deadline of November 16, 2018).

This modification is not warranty reimbursable for non-diversity GDL 84/88 installations.

PURPOSE:

GDL 84/88 System Software Version 3.40 contains the following changes:

  • Fixed GDL 84/88 Application Software v3.34 antenna selection issue that can cause GDL 88D (diversity) units to select the incorrect antenna.
  • Fixed FIS-B processing issues that could result is loss or partial loss of FIS-B data.
  • Updated built-in test monitors to reduce nuisance failures and improved fault logging capabilities.
  • Updated traffic processing library to improve TCAS integration, improve TIS-B track handling, improve traffic source correlation, improve traffic prioritization/selection, and reduce nuisance traffic alerts.
  • Added proprietary traffic, position, air data, and control interfaces for third party OEM customer.
  • Updated ARINC 743A output to include label 141 (UTC Fine).

1764A_ASDN