diff --git a/modules/i3plus-ext-mes-pcn-apiservice/src/main/java/cn/estsh/i3plus/ext/mes/pcn/apiservice/serviceimpl/base/MesReworkTaskServiceImpl.java b/modules/i3plus-ext-mes-pcn-apiservice/src/main/java/cn/estsh/i3plus/ext/mes/pcn/apiservice/serviceimpl/base/MesReworkTaskServiceImpl.java
index da3df81..dc7ef38 100644
--- a/modules/i3plus-ext-mes-pcn-apiservice/src/main/java/cn/estsh/i3plus/ext/mes/pcn/apiservice/serviceimpl/base/MesReworkTaskServiceImpl.java
+++ b/modules/i3plus-ext-mes-pcn-apiservice/src/main/java/cn/estsh/i3plus/ext/mes/pcn/apiservice/serviceimpl/base/MesReworkTaskServiceImpl.java
@@ -386,7 +386,7 @@ public class MesReworkTaskServiceImpl implements IMesReworkTaskService {
                 new Object[]{userName, TimeTool.getNowTime(true),sn.getProductSn(),sn.getDescription()},packBean);
         //更新返工记录
         packBean = DdlPackBean.getDdlPackBean(organizeCode);
-        DdlPreparedPack.getStringEqualPack(sn.getProductSn(),"sn",packBean);
+        DdlPreparedPack.getStringEqualPack(requestModel.getSn(),"sn",packBean);
         DdlPreparedPack.getStringEqualPack(sn.getPartNo(),"partNo",packBean);
         mesReworkTaskRepository.updateByProperties(new String[]{"modifyUser", "modifyDatetime","sn","description"},
                 new Object[]{userName, TimeTool.getNowTime(true),sn.getProductSn(),sn.getDescription()},packBean);