--- a/net/minecraft/world/level/block/BlockFenceGate.java
+++ b/net/minecraft/world/level/block/BlockFenceGate.java
@@ -173,6 +173,17 @@
     protected void neighborChanged(IBlockData iblockdata, World world, BlockPosition blockposition, Block block, @Nullable Orientation orientation, boolean flag) {
         if (!world.isClientSide) {
             boolean flag1 = world.hasNeighborSignal(blockposition);
+            // CraftBukkit start
+            boolean oldPowered = iblockdata.getValue(BlockFenceGate.POWERED);
+            if (oldPowered != flag1) {
+                int newPower = flag1 ? 15 : 0;
+                int oldPower = oldPowered ? 15 : 0;
+                org.bukkit.block.Block bukkitBlock = org.bukkit.craftbukkit.block.CraftBlock.at(world, blockposition);
+                org.bukkit.event.block.BlockRedstoneEvent eventRedstone = new org.bukkit.event.block.BlockRedstoneEvent(bukkitBlock, oldPower, newPower);
+                world.getCraftServer().getPluginManager().callEvent(eventRedstone);
+                flag1 = eventRedstone.getNewCurrent() > 0;
+            }
+            // CraftBukkit end
 
             if ((Boolean) iblockdata.getValue(BlockFenceGate.POWERED) != flag1) {
                 world.setBlock(blockposition, (IBlockData) ((IBlockData) iblockdata.setValue(BlockFenceGate.POWERED, flag1)).setValue(BlockFenceGate.OPEN, flag1), 2);
