diff --git a/qaup-collision/src/main/java/com/qaup/collision/datacollector/websocket/AdxpFlightServiceWebSocketClient.java b/qaup-collision/src/main/java/com/qaup/collision/datacollector/websocket/AdxpFlightServiceWebSocketClient.java
index b157476..f282010 100644
--- a/qaup-collision/src/main/java/com/qaup/collision/datacollector/websocket/AdxpFlightServiceWebSocketClient.java
+++ b/qaup-collision/src/main/java/com/qaup/collision/datacollector/websocket/AdxpFlightServiceWebSocketClient.java
@@ -1012,7 +1012,6 @@ public class AdxpFlightServiceWebSocketClient implements WebSocketHandler {
         String flightNumber = normalizeFlightNo(flightNumberRaw);
         String flightId = normalizeFlightNo(flightIdRaw);
         String contactCross = getTextContent(root, "ContactCross");
-        String seat = getTextContentAny(root, "Seat", "SEAT");
         String type = getTextContent(root, "Type");
         long nowMs = System.currentTimeMillis();
 
@@ -1048,7 +1047,6 @@ public class AdxpFlightServiceWebSocketClient implements WebSocketHandler {
         dto.setType(routeType);
         if ("IN".equalsIgnoreCase(routeType)) {
             dto.setContactCross(contactCross);
-            dto.setSeat(seat);
         }
 
         // TISFLIGHT 特殊：可能无 BizKey。无 BizKey 时先 FuId 关联，再按航班号回退。
@@ -1066,22 +1064,12 @@ public class AdxpFlightServiceWebSocketClient implements WebSocketHandler {
                 updateActiveBizKey(flightKey, normalizedBizKey, nowMs);
                 // contactCross 仅对进港有效，避免进出港参数串用
                 if ("IN".equalsIgnoreCase(routeType)
-                        && canUpdateRouteParams
                         && contactCross != null && !contactCross.isBlank()) {
                     setValueOnFlightAndBizKeys(flightKey, bizRedisKey, "contactCross", contactCross);
                     setValueOnFlightAndBizKeys(flightKey, bizRedisKey, "contactCrossTs", String.valueOf(nowMs));
                 }
                 // TISFLIGHT 也可提供 seat，作为 CRAFTSEAT 的补充来源
-                if (canUpdateRouteParams
-                        && seat != null && !seat.isBlank()) {
-                    setValueOnFlightAndBizKeys(flightKey, bizRedisKey, "seat", seat);
-                    setValueOnFlightAndBizKeys(flightKey, bizRedisKey, "seatTs", String.valueOf(nowMs));
-                    if ("OUT".equalsIgnoreCase(routeType)) {
-                        setValueOnFlightAndBizKeys(flightKey, bizRedisKey, "startSeat", seat);
-                        setValueOnFlightAndBizKeys(flightKey, bizRedisKey, "startSeatTs", String.valueOf(nowMs));
-                    }
-                }
-                if (!canUpdateRouteParams && (contactCross != null || seat != null)) {
+                if (!canUpdateRouteParams && contactCross != null) {
                     log.warn("TISFLIGHT未建立BizKey关联，跳过contactCross/seat覆盖: flNo={}, flightId={}, fuId={}, bizKey={}, resolvedFlightNo={}",
                             flightNumber, flightId, fuId, bizKey, resolvedFlightNo);
                 }
diff --git a/qaup-collision/src/main/java/com/qaup/collision/dataprocessing/service/DataProcessingService.java b/qaup-collision/src/main/java/com/qaup/collision/dataprocessing/service/DataProcessingService.java
index bdc8f5b..8b39a6e 100644
--- a/qaup-collision/src/main/java/com/qaup/collision/dataprocessing/service/DataProcessingService.java
+++ b/qaup-collision/src/main/java/com/qaup/collision/dataprocessing/service/DataProcessingService.java
@@ -1349,19 +1349,25 @@ public class DataProcessingService {
     }
 
     private String readRedisParamBySelectedKey(String bizRedisKey, String flightKey, String field) {
-        String sourceKey = bizRedisKey != null ? bizRedisKey : flightKey;
-        if (sourceKey == null) {
-            return null;
+        String value = null;
+        if (bizRedisKey != null) {
+            value = normalizeRedisString(redisCache.getCacheMapValue(bizRedisKey, field));
         }
-        return normalizeRedisString(redisCache.getCacheMapValue(sourceKey, field));
+        if ((value == null || value.isBlank()) && flightKey != null) {
+            value = normalizeRedisString(redisCache.getCacheMapValue(flightKey, field));
+        }
+        return value;
     }
 
     private Long readRedisParamLongBySelectedKey(String bizRedisKey, String flightKey, String field) {
-        String sourceKey = bizRedisKey != null ? bizRedisKey : flightKey;
-        if (sourceKey == null) {
-            return null;
+        Long value = null;
+        if (bizRedisKey != null) {
+            value = parseRedisLong(redisCache.getCacheMapValue(bizRedisKey, field));
         }
-        return parseRedisLong(redisCache.getCacheMapValue(sourceKey, field));
+        if (value == null && flightKey != null) {
+            value = parseRedisLong(redisCache.getCacheMapValue(flightKey, field));
+        }
+        return value;
     }
 
     private static Long parseRedisLong(Object v) {