WordPress at a glance
action is not described

woocommerce_system_status_report action-hook . WC 1.0

Usage

add_action( 'woocommerce_system_status_report', 'action_function_name_1378' );
function action_function_name_1378(){
	// action...
}

Where the hook is called

In file: /includes/admin/views/html-admin-page-status-report.php
woocommerce_system_status_report
woocommerce/includes/admin/views/html-admin-page-status-report.php 1020
<?php do_action( 'woocommerce_system_status_report' ); ?>

Where in WP core the hook is used WooCommerce

woocommerce/packages/action-scheduler/classes/ActionScheduler_AdminView.php 38
add_action( 'woocommerce_system_status_report', array( $this, 'system_status_report' ) );