Garmin GSA 28 servo service life extension program

[Cactus Charlie]

Last weekend I became aware that Garmin had, back in May 2023, introduced a GSA 28 servo service life extension program. It seems that Garmin had found that a batch of GSA 28 servos manufactured between September 2021 and January 2022 had been built with one or more substandard parts. Garmin initially issued service bulletin 22016 for these specific serial numbers.

Later Garmin issued two more service bulletins, 23024 Rev A for type certificated aircraft, and 23038 Rev A for experimental aircraft. These SB offer free replacement of a wide range of GSA 28 servos with the offer effective for 5 years after the date of the SB. This covers servos with expired warranty and regardless of time in service. This program ends May 2028.

While doing the research on this program I collected a list of references that may be useful. There may be some duplication and the references are not in date order.

Vans announcement and discussion

Garmin GSA 28 Servo Service-Life Extension (Service Bulletin 23038)

Good Morning, We released a Service bulletin today that outlines a Service-Life Extension program for our GSA 28 Autopilot Servos. Garmin has implemented several design and manufacturing process improvements to improve GSA 28 reliability. The latest update has been added to a consolidation of...

vansairforce.net

Service life notification

https://atlaske-content.garmin.com/filestorage//email/outbound/attachments/23024A_ASDN_Time1683212862161.pdf

Non experimental SB 23024 rev A

Garmin | United States | Aviation Support

Garmin Aviation Support Center is where you will find answers to frequently asked questions and resources to help with all of your Garmin Aviation products.

support.garmin.com

Garmin | United States | Aviation Support

Garmin Aviation Support Center is where you will find answers to frequently asked questions and resources to help with all of your Garmin Aviation products.

support.garmin.com

Garmin | United States | Aviation Support

Garmin Aviation Support Center is where you will find answers to frequently asked questions and resources to help with all of your Garmin Aviation products.

support.garmin.com

Experimental SB 23038 Rev A

https://atlaske-content.garmin.com/filestorage//email/outbound/attachments/23038A_Time1683214719175.pdf

(2023) Service Bulletin 23038 Rev A: GSA 28 Service-Life Extension Program (Non-Certified) | Garmin Customer Support

Garmin Support Center is where you will find answers to frequently asked questions and resources to help with all of your Garmin products.

support.garmin.com

Initial SB 22016 reference only a limited range of early servos.

(2023) Service Bulletin 22016 Rev B: GSA 28 Servo Mod 1 | Garmin Customer Support

Garmin Support Center is where you will find answers to frequently asked questions and resources to help with all of your Garmin products.

support.garmin.com

https://atlaske-content.garmin.com/filestorage//email/outbound/attachments/22016B_Time1683218353550.pdf

FAQ

Garmin | United States | Aviation Support

Garmin Aviation Support Center is where you will find answers to frequently asked questions and resources to help with all of your Garmin Aviation products.

support.garmin.com

SB 23024 impacted by serial number

Garmin | United States | Aviation Support

Garmin Aviation Support Center is where you will find answers to frequently asked questions and resources to help with all of your Garmin Aviation products.

support.garmin.com

SB 23038 impacted by serial number

https://support.garmin.com/en-US/?faq=cT8XL8eCKr64Wg6ntYb3E7

High level info links

Garmin | United States | Aviation Support

Garmin Aviation Support Center is where you will find answers to frequently asked questions and resources to help with all of your Garmin Aviation products.

support.garmin.com

 

[Neal]

Great info! Thanks for sharing.