diff --git a/topology/Massachusetts Institute of Technology/MIT CMS/MIT_CMS_downtime.yaml b/topology/Massachusetts Institute of Technology/MIT CMS/MIT_CMS_downtime.yaml
index 8c91757d9..4b72d62ba 100644
--- a/topology/Massachusetts Institute of Technology/MIT CMS/MIT_CMS_downtime.yaml	
+++ b/topology/Massachusetts Institute of Technology/MIT CMS/MIT_CMS_downtime.yaml	
@@ -213,3 +213,50 @@
   Severity: Outage
   StartTime: Sep 26, 2017 10:00 +0000
 # ----------------------------------------------------------
+- Class: SCHEDULED
+  ID: 973139192
+  Description: Electrical grid upgrade
+  Severity: Outage
+  StartTime: Sep 25, 2021 21:00 +0000
+  EndTime: Sep 30, 2021 09:00 +0000
+  CreatedTime: Sep 22, 2021 12:31 +0000
+  ResourceName: MIT_CMS
+  Services:
+  - CE
+  - GridFtp
+# ---------------------------------------------------------
+- Class: SCHEDULED
+  ID: 973191455
+  Description: Electrical grid upgrade
+  Severity: Outage
+  StartTime: Sep 25, 2021 21:00 +0000
+  EndTime: Sep 30, 2021 09:00 +0000
+  CreatedTime: Sep 22, 2021 13:59 +0000
+  ResourceName: MIT_CMS_2
+  Services:
+  - CE
+  - GridFtp
+# ---------------------------------------------------------
+- Class: SCHEDULED
+  ID: 973191934
+  Description: Electrical grid upgrade
+  Severity: Outage
+  StartTime: Sep 25, 2021 21:00 +0000
+  EndTime: Sep 30, 2021 09:00 +0000
+  CreatedTime: Sep 22, 2021 13:59 +0000
+  ResourceName: MIT_CMS_3
+  Services:
+  - CE
+  - GridFtp
+# ---------------------------------------------------------
+- Class: SCHEDULED
+  ID: 973192216
+  Description: Electrical grid upgrade
+  Severity: Outage
+  StartTime: Sep 25, 2021 21:00 +0000
+  EndTime: Sep 30, 2021 09:00 +0000
+  CreatedTime: Sep 22, 2021 14:00 +0000
+  ResourceName: MIT_CMS-SE
+  Services:
+  - SRMv2
+# ---------------------------------------------------------