diff --git a/x-pack/test_serverless/functional/test_suites/observability/cases/create_case_form.ts b/x-pack/test_serverless/functional/test_suites/observability/cases/create_case_form.ts
index b6c76f3ab1f49..e89e2b799dc30 100644
--- a/x-pack/test_serverless/functional/test_suites/observability/cases/create_case_form.ts
+++ b/x-pack/test_serverless/functional/test_suites/observability/cases/create_case_form.ts
@@ -21,6 +21,7 @@ export default ({ getService, getPageObject }: FtrProviderContext) => {
     const testSubjects = getService('testSubjects');
     const svlCommonPage = getPageObject('svlCommonPage');
     const config = getService('config');
+    const header = getPageObject('header');
 
     before(async () => {
       await svlCommonPage.login();
@@ -28,6 +29,7 @@ export default ({ getService, getPageObject }: FtrProviderContext) => {
 
     beforeEach(async () => {
       await navigateToCasesApp(getPageObject, getService, owner);
+      await header.waitUntilLoadingHasFinished();
     });
 
     after(async () => {
diff --git a/x-pack/test_serverless/functional/test_suites/observability/cases/view_case.ts b/x-pack/test_serverless/functional/test_suites/observability/cases/view_case.ts
index be6295903615a..24234d4a40e52 100644
--- a/x-pack/test_serverless/functional/test_suites/observability/cases/view_case.ts
+++ b/x-pack/test_serverless/functional/test_suites/observability/cases/view_case.ts
@@ -35,6 +35,7 @@ export default ({ getPageObject, getService }: FtrProviderContext) => {
     });
 
     after(async () => {
+      await cases.api.deleteAllCases();
       await svlCommonPage.forceLogout();
     });
 
diff --git a/x-pack/test_serverless/functional/test_suites/security/ftr/cases/create_case_form.ts b/x-pack/test_serverless/functional/test_suites/security/ftr/cases/create_case_form.ts
index 14288c9c60668..01acd082021a2 100644
--- a/x-pack/test_serverless/functional/test_suites/security/ftr/cases/create_case_form.ts
+++ b/x-pack/test_serverless/functional/test_suites/security/ftr/cases/create_case_form.ts
@@ -15,22 +15,23 @@ import { navigateToCasesApp } from '../../../../../shared/lib/cases';
 const owner = SECURITY_SOLUTION_OWNER;
 
 export default ({ getService, getPageObject }: FtrProviderContext) => {
-  // FLAKY: https://github.com/elastic/kibana/issues/166842
-  describe.skip('Create Case', function () {
+  describe('Create Case', function () {
     const find = getService('find');
     const cases = getService('cases');
     const testSubjects = getService('testSubjects');
     const config = getService('config');
     const svlCommonPage = getPageObject('svlCommonPage');
-
-    beforeEach(async () => {
-      await navigateToCasesApp(getPageObject, getService, owner);
-    });
+    const header = getPageObject('header');
 
     before(async () => {
       await svlCommonPage.login();
     });
 
+    beforeEach(async () => {
+      await navigateToCasesApp(getPageObject, getService, owner);
+      await header.waitUntilLoadingHasFinished();
+    });
+
     after(async () => {
       await cases.api.deleteAllCases();
       await svlCommonPage.forceLogout();
diff --git a/x-pack/test_serverless/functional/test_suites/security/ftr/cases/view_case.ts b/x-pack/test_serverless/functional/test_suites/security/ftr/cases/view_case.ts
index ca3e9af7df83f..4429c74040eaf 100644
--- a/x-pack/test_serverless/functional/test_suites/security/ftr/cases/view_case.ts
+++ b/x-pack/test_serverless/functional/test_suites/security/ftr/cases/view_case.ts
@@ -36,6 +36,7 @@ export default ({ getPageObject, getService }: FtrProviderContext) => {
     });
 
     after(async () => {
+      await cases.api.deleteAllCases();
       await svlCommonPage.forceLogout();
     });