(2023) Service Bulletin 23024 Rev A: GSA 28 Service-Life Extension Program

PRODUCTS AFFECTED

All 011-02927-11 GSA 28 units are affected.

All 011-02927-21 GSA 28 units that are not marked with Mod 1 are also affected.

Refer to the lists below of -21 serial numbers not modified:

-21 GSA 28 units:

https://support.garmin.com/aviation/faq/kmkaZ5NWGfA8aH2UTROcI9/

Refer to the FAQ for further questions and to aid in identifying affected servos:

https://Garmin.com/GSA28Info/

COMPLIANCE

Recommended: Compliance with Service Bulletin 23024 is recommended. 

PURPOSE

Garmin has implemented several design and manufacturing process improvements to improve GSA 28 reliability. The latest update has been added to a consolidation of all past improvements into a single effort we are calling a GSA 28 Service-Life Extension Program. The Service-Life Extension Program allows up to five years to exchange, under warranty, all affected GSA 28 servos for servos marked with Mod 1.

All -11 GSA 28 servos are eligible for exchange under this program.

-21 GSA 28 servos not marked with Mod 1 are eligible for exchange under this program.

Newly manufactured -21 GSA 28 units marked with Mod 1 began shipping Sept. 1, 2022 starting with the serial number 6N2006946.

This service bulletin contains instructions to remove and exchange affected servos, and install -21 GSA 28 servos marked with Mod 1.

NOTE

-21 GSA 28 servos are compatible with the following software:

• • G3X Touch 9.00 or later
  • G5 8.00 or later
  • GI 275 2.42 or later

WARRANTY INFORMATION

For installation in certified aircraft only, all affected servo units are eligible for parts and labor warranty reimbursement for a period of five (5) years from the date of this service bulletin.