COMPLIANCE

Optional: Software Service Bulletin 1153 may be incorporated at the customer’s request.

PURPOSE

Software Version 6.20 for GTX 330/330D w/ES products (not applicable to GNS 480, G900X, G950, G1000, Cirrus Perspective®, or Embraer Prodigy™ installations) improves the quality of transmitted position information.

PRODUCT AFFECTED

Software Service Bulletin 1153 is applicable to GTX 330/330D w/ES (Extended Squitter) units with Software Version 6.11 or previous software versions that are not installed with GNS 480, G900X, G950, G1000, Cirrus Perspective®, or Embraer Prodigy™ systems.

This software service bulletin does not apply to non-ES enabled GTX 330/330D units.

The unit’s current software version is displayed at power up on the GTX 330/330D front panel.