diff --git a/src/main/java/com/gzzn/omms/msgexchangeapi/msghandler/flop/PSDTHandler.java b/src/main/java/com/gzzn/omms/msgexchangeapi/msghandler/flop/PSDTHandler.java
index 7a0358f3..4ea8bf7c 100644
--- a/src/main/java/com/gzzn/omms/msgexchangeapi/msghandler/flop/PSDTHandler.java
+++ b/src/main/java/com/gzzn/omms/msgexchangeapi/msghandler/flop/PSDTHandler.java
@@ -1,11 +1,13 @@
 package com.gzzn.omms.msgexchangeapi.msghandler.flop;
 
+import java.math.BigInteger;
 import java.util.List;
 
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 import org.springframework.beans.BeanUtils;
 import org.springframework.util.CollectionUtils;
+import org.springframework.util.StringUtils;
 
 import com.gzzn.omms.msgexchangeapi.basicdata.entity.OrmsStand;
 import com.gzzn.omms.msgexchangeapi.basicdata.manager.OrmsStandAirbridgeManager;
@@ -34,6 +36,7 @@ public class PSDTHandler extends FlopBaseHandler {
 			return fltr;
 		}
 		
+		
 		//先保存当前航班机位数据
 		if(!CollectionUtils.isEmpty(fltr.getPSDT()))
 		{
@@ -43,37 +46,74 @@ public class PSDTHandler extends FlopBaseHandler {
 		
 		//更新计划机位
 		fltr.getPSDT().clear(); //清空旧数据
-		for(OPTSTANDDATA optStandata : flop.getPSDT() ) 
+		
+		//
+		if(!isClearPsdtMsg(flop.getPSDT()) )
 		{
-			STANDDATA standata = new STANDDATA();
-			BeanUtils.copyProperties(optStandata, standata);
-			
-			fltr.getPSDT().add(standata);
-		} 
+			for(OPTSTANDDATA optStandata : flop.getPSDT() ) 
+			{
+				STANDDATA standata = new STANDDATA();
+				BeanUtils.copyProperties(optStandata, standata);
+				
+				fltr.getPSDT().add(standata);
+			} 
+		} //end if
+		
 		
 		//更新登机桥信息
 		return updateAbg(fltr,flop.getPSDT());
 	}
 	
+	
+	/**
+	 * 判断是否清空计划机位事件,内容为空的情况,<PSDT PSNO = "0"></PSDT>
+	 * @param flop 航班事件
+	 * @return true 清空计划航班事件 ,false 非清空计划航班事件
+	 */
+	private Boolean isClearPsdtMsg(List<OPTSTANDDATA> lsOptstanddata)
+	{
+		return  (
+				    lsOptstanddata.size() == 1 
+			        && lsOptstanddata.get(0).getPSNO().equals(new BigInteger("0"))
+			        && StringUtils.isEmpty(lsOptstanddata.get(0).getPSST())
+				);
+	}
+	
+	
 	/**
 	 * 判断计划机位是否相等
 	 * @param psdt 原机位信息
 	 * @param optPsdt 新机位信息
-	 * @return
+	 * @return true 相同,false 不相同
 	 */
 	private Boolean  isTheSamePSDT(List<STANDDATA> psdt ,List<OPTSTANDDATA> optPsdt) 
 	{
+		//特殊处理清空航班事件
+		if(
+				isClearPsdtMsg(optPsdt)
+				&& 
+				CollectionUtils.isEmpty(psdt)
+		  )
+		{
+			return true;//当前为清除机位信息，同时当前机位信息为空
+		}
+		
+		//不相等,必然不同
+		if (psdt.size() != optPsdt.size()) {
+			return false;
+		}
+		
 		psdt.sort((node1,node2)-> node1.getPSST().compareTo(node2.getPSST()));
 		optPsdt.sort((node1,node2)-> node1.getPSST().compareTo(node2.getPSST()));
 		
 		//生成序列比较是否相等
-		StringBuffer strPsdt = new StringBuffer();
+		StringBuilder strPsdt = new StringBuilder();
 		psdt.forEach(node->{
 			strPsdt.append(node.getPSST());
 			strPsdt.append(",");
 		});
 		
-		StringBuffer strOptPsdt = new StringBuffer();
+		StringBuilder strOptPsdt = new StringBuilder();
 		optPsdt.forEach(node->{
 			strOptPsdt.append(node.getPSST());
 			strOptPsdt.append(",");
@@ -88,19 +128,25 @@ public class PSDTHandler extends FlopBaseHandler {
 	 */
 	private String getPsdtAsStr(List<STANDDATA> lsStanddata)
 	{
-		//先保存当前航班机位数据
-		String lpsdt="";
-		for(STANDDATA node : lsStanddata) 
+		if(CollectionUtils.isEmpty(lsStanddata))
 		{
-			lpsdt += node.getPSST();
-			lpsdt += ",";
-		}
-		if(lpsdt.endsWith(","))
-		{
-			lpsdt = lpsdt.substring(0, lpsdt.length() - 1);
+			return "";
 		}
 		
-		return lpsdt;
+		
+		//先保存当前航班机位数据
+		StringBuilder lpsdt= new StringBuilder();
+		for(STANDDATA node : lsStanddata) 
+		{
+			lpsdt.append(node.getPSST());
+			lpsdt.append(",");
+		}
+		if(lpsdt.toString().endsWith(","))
+		{
+			lpsdt.deleteCharAt(lpsdt.length()-1);
+		}
+		
+		return lpsdt.toString();
 	}//end function
 	
 	/**
@@ -110,51 +156,66 @@ public class PSDTHandler extends FlopBaseHandler {
 	 */
 	private  SCHD.FLTR updateAbg(SCHD.FLTR  fltr,List<OPTSTANDDATA> lsOptstanddata)
 	{
-		for(OPTSTANDDATA optStandata : lsOptstanddata ) {
-			STANDDATA standata = new STANDDATA();
-			BeanUtils.copyProperties(optStandata, standata);
-			
-			try {
-					//获取机位
-					OrmsStand ormsStand = OrmsStandManager
-							.getInstance()
-							.getOrmsStandByStandCode(standata.getPSST());
-					if(null == ormsStand)
-					{
-						logger.error("机位:{},基础数据获取失败",standata.getPSST());
-						continue;
-					}
-					
-					//获取机位对应的登机桥
-					if("near".equalsIgnoreCase(ormsStand.getStandType()) == false) 
-					{
-						//远机位，清空登机桥信息
-						fltr.setAbdg("");
-					}
-					
-					//近机位处理
-					String standCode = standata.getPSST();//登机桥 
-					
-					
-					List<String> lsBridge = OrmsStandAirbridgeManager
-							     .getInstance()
-							     .getAirbridgeCodeByStandCodeCode(standCode);
-					//
-					StringBuffer abdgBuffer = new StringBuffer();
-					lsBridge.forEach(node->{
-						abdgBuffer.append(node);
-						abdgBuffer.append(",");
-					});
-					if(abdgBuffer.toString().endsWith(","))
-					{
-						abdgBuffer.deleteCharAt(abdgBuffer.length() - 1);
-					}
-					
-					fltr.setAbdg(abdgBuffer.toString());//登机桥叠加
-			} catch (Exception e) {
-				 logger.error("获取登机桥信息失败,msg:{},trace:{}",e.getMessage(),e);
+		//清空计划机位事件,同时清除登机桥信息
+		if (isClearPsdtMsg(lsOptstanddata)) {
+			fltr.setAbdg("");
+			return fltr;
+		}
+		
+		
+		//多个机位信息，取最后一个机位的登机桥信息
+		if (CollectionUtils.isEmpty(lsOptstanddata)) {
+			return fltr;
+		}//end if
+		
+		
+
+		OPTSTANDDATA optStandata = lsOptstanddata.get(lsOptstanddata.size() - 1);
+		STANDDATA standata = new STANDDATA();
+		BeanUtils.copyProperties(optStandata, standata);
+		
+		
+		//获取机位
+		OrmsStand ormsStand = OrmsStandManager
+				.getInstance()
+				.getOrmsStandByStandCode(standata.getPSST());
+		if(null == ormsStand)
+		{
+			logger.error("机位:{},基础数据获取失败",standata.getPSST());
+			return fltr;
+		}
+		
+		//远机位,清空登机桥信息
+		if("near".equalsIgnoreCase(ormsStand.getStandType()) == false) 
+		{
+			fltr.setAbdg("");
+			return fltr;
+		}
+		
+		
+		//近机位,获取登机桥
+		String standCode = standata.getPSST();//登机桥 
+		
+		try {
+			List<String> lsBridge = OrmsStandAirbridgeManager
+					     .getInstance()
+					     .getAirbridgeCodeByStandCodeCode(standCode);
+			//
+			StringBuilder abdgBuffer = new StringBuilder();
+			lsBridge.forEach(node->{
+				abdgBuffer.append(node);
+				abdgBuffer.append(",");
+			});
+			if(abdgBuffer.toString().endsWith(","))
+			{
+				abdgBuffer.deleteCharAt(abdgBuffer.length() - 1);
 			}
-		}//end for
+			
+			fltr.setAbdg(abdgBuffer.toString());//登机桥叠加
+			return fltr;
+		} catch (Exception e) {
+			logger.error("msg:{},trace:{}",e.getMessage(),e);
+		}
 		
 		return fltr;
 	} //end function