diff --git a/GS_NFV-SOL_026.md b/GS_NFV-SOL_026.md
index 80fcc81650a4d6222893f348d2a3f3e1b0869a11..35a570599a1ddfa4e207a7b4452a666f0dcd49cc 100644
--- a/GS_NFV-SOL_026.md
+++ b/GS_NFV-SOL_026.md
@@ -1703,7 +1703,9 @@ The request and response data structures of the physical resource performance ma
 
 ## 10.4 Sequence diagrams (informative)
 
-<mark>Editor's Note:    This sub-clause will add sequence diagrams of operations supported over this service interface.</mark>
+### 10.4.1 Introduction
+
+The physical resource fault management service interface supports notifying the subscribed consumers about any faults or alarms that may occur related to the concerned physical resources. Flows related to subscription management and notifications described in Annex A of the present document are also applicable for the subscriptions and notifications related to fault management supported by this service interface.
 
 ## 10.5 Resources
 <mark>Editor's Note:    This sub-clause will add API resources of the service interface.</mark>