diff --git a/src/blackmisc/avaircraftlist.cpp b/src/blackmisc/avaircraftlist.cpp
index 31c8ea611..06ce4886f 100644
--- a/src/blackmisc/avaircraftlist.cpp
+++ b/src/blackmisc/avaircraftlist.cpp
@@ -10,7 +10,9 @@
 #include "avaircraftlist.h"
 #include "nwuser.h"
 #include "predicates.h"
+#include "propertyindexallclasses.h"
 
+using namespace BlackMisc;
 using namespace BlackMisc::PhysicalQuantities;
 using namespace BlackMisc::Network;
 
@@ -30,6 +32,23 @@ namespace BlackMisc
             CSequence<CAircraft>(other)
         { }
 
+        /*
+         * Contains callsign
+         */
+        bool CAircraftList::containsCallsign(const CCallsign &callsign) const
+        {
+            if (callsign.isEmpty()) { return false; }
+            return this->contains(&CAircraft::getCallsign, callsign);
+        }
+
+        /*
+         * Change for callsign
+         */
+        int CAircraftList::applyIfCallsign(const CCallsign &callsign, const CPropertyIndexVariantMap &variantMap)
+        {
+            return this->applyIf(&CAircraft::getCallsign, callsign, variantMap, false);
+        }
+
         /*
          * Register metadata
          */
diff --git a/src/blackmisc/avaircraftlist.h b/src/blackmisc/avaircraftlist.h
index 5342ce663..2b3678f98 100644
--- a/src/blackmisc/avaircraftlist.h
+++ b/src/blackmisc/avaircraftlist.h
@@ -17,6 +17,7 @@
 #include "nwuserlist.h"
 #include "collection.h"
 #include "sequence.h"
+#include "propertyindexvariantmap.h"
 #include <QObject>
 #include <QString>
 #include <QList>
@@ -25,7 +26,7 @@ namespace BlackMisc
 {
     namespace Aviation
     {
-        //! Value object encapsulating a list of aircrafts.
+        //! Value object encapsulating a list of aircraft.
         class CAircraftList : public CSequence<CAircraft>
         {
         public:
@@ -35,6 +36,12 @@ namespace BlackMisc
             //! Construct from a base class object.
             CAircraftList(const CSequence<CAircraft> &other);
 
+            //! Contains callsign?
+            bool containsCallsign(const BlackMisc::Aviation::CCallsign &callsign) const;
+
+            //! Apply for given callsign
+            int applyIfCallsign(const BlackMisc::Aviation::CCallsign &callsign, const BlackMisc::CPropertyIndexVariantMap &variantMap);
+
             //! Find 0..n stations by callsign
             CAircraftList findByCallsign(const CCallsign &callsign) const;