> For the complete documentation index, see [llms.txt](https://docs.ceruleansonar.com/c/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.ceruleansonar.com/c/tracker-650/technical-details/technical-bulletins/technical-bulletin-2.md).

# Technical Bulletin #2

Date: September 11th, 2025

Product: Tracker 650 DVL V2 (post-2025)

Problem: Water ingress due to manufacturing defect

#### Summary <a href="#summary" id="summary"></a>

A manufacturing defect in the housing back piece can lead to water ingress. The problem was corrected on any units built after September 11th 2025.&#x20;

#### Identification of Problem <a href="#identification-of-problem" id="identification-of-problem"></a>

* Water ingress in housing.&#x20;
* All V2 Tracker 650 units built before September 11th 2025 are effected by this bulletin

#### Correction Procedure <a href="#correction-options" id="correction-options"></a>

Warranty Return: [Submit a support ticket](https://ceruleansonarhelp.zendesk.com/hc/en-us/requests/new), Cerulean Sonar will repair the electronics at no cost.