Select your product to confirm this information applies to you

(2023) Service Bulletin 23056 Rev A: GDL 84/88 System Software Version 3.43 and WAAS Software Version 5.3

PRODUCTS AFFECTED:

GDL 84/88 units listed in the table below are affected.

ModelAppliance P/N
ModelAppliance P/N
 GDL 88011-02369-00
 GDL 84 w/WAAS011-03727-00
 GDL 88 w/WAAS011-02370-00
 GDL 84H w/WAAS011-03728-00
 GDL 88D011-02371-00
 GDL 88 w/WAAS upgrade011-02370-40
 GDL 88D w/WAAS011-02372-00
 GDL 88H w/WAAS upgrade011-02370-50
 GDL 88H011-02369-10


 GDL 88H w/WAAS011-02370-10


 GDL 88DH011-02371-10


 GDL 88DH w/WAAS011-02372-10



CERTIFICATION AUTHORIZATION:

TSO Authorization

TSO Authorization does not provide installation airworthiness approval. Separate installation airworthiness approval is required for type-certified aircraft. Notification of revision to any Garmin STC(s) will be provided under a separate service bulletin.


COMPLIANCE:

Recommended: This Service Bulletin is recommended at the next scheduled maintenance interval.


PURPOSE:

GDL 84/88 System Software Version 3.43 provides the following:

  • Corrected an issue where some 1090ES ADS-B and ADS-R surface targets may erroneously appear as directional

NOTE
This also provides improved “look-ahead” hover-taxi alerting in rotorcraft.

  • Robustness improvements to ADS-B processing.

WAAS Software Version 5.3 (if applicable) fixes a GPS date problem beginning August 16, 2020. The GDL 84/88 may report an incorrect GPS date if the GPS receiver has not acquired a 3D navigation solution within the last 128 weeks.


WARRANTY INFORMATION:

This modification is warranty reimbursable with a deadline of November 30, 2023.

Attachments

Sumber terkait