diff --git a/docs/user/features.md b/docs/user/features.md
index 1df61ee..4cb4329 100644
--- a/docs/user/features.md
+++ b/docs/user/features.md
@@ -31,7 +31,7 @@ This document lists features that are implemented in the current codebase.
 
 - Reusable production `RepairGame` mounted for `bike`, `pylone`, and `ferme` mission states
 - Repair mission config shared through `src/data/gameplay/repairMissions.ts`
-- Repair-game flow supports `waiting -> inspected -> fragmented -> scanning -> repairing -> done -> next mission` with `.webm` prompts, repair case spawn/opening, `E`, two-fists hold input, exploded model transition, scan visuals, multiple grabbable replacement choices, correct-part install validation, and mission completion
+- Repair-game flow supports `waiting -> inspected -> fragmented -> scanning -> repairing -> done -> next mission` with `.webm` prompts, repair case spawn/opening/exit, `E`, two-fists hold input, exploded model transition, scan visuals, multiple grabbable replacement choices, correct-part install validation, and mission completion
 
 ## Audio
 
diff --git a/docs/user/main-feature.md b/docs/user/main-feature.md
index 53b7c29..7ca2ea5 100644
--- a/docs/user/main-feature.md
+++ b/docs/user/main-feature.md
@@ -19,7 +19,7 @@ The current user flow is:
 9. In `repairing`, the case opens and several grabbable replacement parts appear near the case.
 10. Move the correct replacement part close to the install target.
 11. Press `E` on the green install target to move to `done` and show the reassembled object. Wrong parts turn the target red and cannot finish the repair.
-12. Press `E` on the completion target to call `completeMission` and move to the next mission, or to `outro` after `ferme`.
+12. Press `E` on the completion target. The repair case closes, returns to the ground, disappears, then `completeMission` moves to the next mission or to `outro` after `ferme`.
 
 ## Why It Matters
 
@@ -33,12 +33,12 @@ When the player inspects the object, `RepairGame` writes `inspected` through the
 
 In `inspected`, `RepairGame` can also move to `fragmented`. The player can use the interaction key or hold both fists closed for one second. The hand-tracking path is state-based, so it does not depend on being inside a local object interaction radius.
 
-In `fragmented`, the repair object is rendered with `ExplodableModel`, then automatically advances to `scanning`. In `scanning`, a blue scan visual and the `cassé.webm` prompt are shown before the flow advances to `repairing`. In `repairing`, the case opens, several grabbable replacement parts appear, and the install target only validates the configured correct part for the active mission. In `done`, the repaired object remains visible with a completion target that advances the global mission progression.
+In `fragmented`, the repair object is rendered with `ExplodableModel`, then automatically advances to `scanning`. In `scanning`, a blue scan visual and the `cassé.webm` prompt are shown before the flow advances to `repairing`. In `repairing`, the case opens, several grabbable replacement parts appear, and the install target only validates the configured correct part for the active mission. In `done`, the repaired object remains visible with a completion target that plays the case exit animation before advancing the global mission progression.
 
 ## Key Files
 
 - `src/world/GameStageContent.tsx` mounts production `RepairGame` instances for `bike`, `pylone`, and `ferme`.
-- `src/components/three/gameplay/RepairCompletionStep.tsx` renders the final repaired object, completion target, and mission UI prompt.
+- `src/components/three/gameplay/RepairCompletionStep.tsx` renders the final repaired object, completion target, case exit animation, and mission UI prompt.
 - `src/components/three/gameplay/RepairGame.tsx` composes the reusable production repair flow.
 - `src/components/three/gameplay/RepairInspectionObject.tsx` handles the `waiting` inspection interaction.
 - `src/components/three/gameplay/RepairMissionCase.tsx` renders the mission repair case after inspection.
diff --git a/src/components/three/gameplay/RepairCaseModel.tsx b/src/components/three/gameplay/RepairCaseModel.tsx
index 49cd9f1..ab5085f 100644
--- a/src/components/three/gameplay/RepairCaseModel.tsx
+++ b/src/components/three/gameplay/RepairCaseModel.tsx
@@ -8,6 +8,8 @@ import {
   REPAIR_CASE_FLOAT_ACTIVATION_DISTANCE,
   REPAIR_CASE_FLOAT_DOWN_SPEED,
   REPAIR_CASE_FLOAT_HEIGHT,
+  REPAIR_CASE_EXIT_DURATION,
+  REPAIR_CASE_EXIT_Y_OFFSET,
   REPAIR_CASE_FLOAT_UP_SPEED,
   REPAIR_CASE_LID_NODE_NAME,
   REPAIR_CASE_OPEN_ROTATION_OFFSET_DEGREES,
@@ -24,6 +26,8 @@ import { toVector3Scale } from "@/utils/three/scale";
 interface RepairCaseModelProps extends ModelTransformProps {
   modelPath: string;
   open: boolean;
+  exiting?: boolean;
+  onExitComplete?: (() => void) | undefined;
 }
 
 const CASE_CLOSED_ROTATION_OFFSET_Z = THREE.MathUtils.degToRad(
@@ -39,6 +43,8 @@ const ROTATION_AMPLITUDE = THREE.MathUtils.degToRad(
 export function RepairCaseModel({
   modelPath,
   open,
+  exiting = false,
+  onExitComplete,
   position = [0, 0, 0],
   rotation = [0, 0, 0],
   scale = 1,
@@ -58,10 +64,15 @@ export function RepairCaseModel({
   const animationActiveRef = useRef(false);
   const phase = useRef({ x: 0, y: 0, z: 0 });
   const pop = useRef({ scale: 0.001, yOffset: REPAIR_CASE_POP_Y_OFFSET });
+  const onExitCompleteRef = useRef(onExitComplete);
   const initialOpen = useRef(open);
   const openedRotationZ = useRef(0);
   const parsedScale = toVector3Scale(scale);
 
+  useEffect(() => {
+    onExitCompleteRef.current = onExitComplete;
+  }, [onExitComplete]);
+
   useEffect(() => {
     const popAnimation = pop.current;
 
@@ -83,6 +94,26 @@ export function RepairCaseModel({
     };
   }, []);
 
+  useEffect(() => {
+    if (!exiting) return undefined;
+
+    const popAnimation = pop.current;
+    gsap.to(popAnimation, {
+      scale: 0.001,
+      yOffset: REPAIR_CASE_EXIT_Y_OFFSET,
+      duration: REPAIR_CASE_EXIT_DURATION,
+      ease: "back.in(1.4)",
+      overwrite: true,
+      onComplete: () => {
+        onExitCompleteRef.current?.();
+      },
+    });
+
+    return () => {
+      gsap.killTweensOf(popAnimation);
+    };
+  }, [exiting]);
+
   useEffect(() => {
     const lid = model.getObjectByName(REPAIR_CASE_LID_NODE_NAME);
     lidRef.current = lid ?? null;
@@ -122,8 +153,9 @@ export function RepairCaseModel({
 
     group.getWorldPosition(worldPosition.current);
     const isNear =
+      !exiting &&
       worldPosition.current.distanceTo(camera.position) <=
-      REPAIR_CASE_FLOAT_ACTIVATION_DISTANCE;
+        REPAIR_CASE_FLOAT_ACTIVATION_DISTANCE;
     const targetHeight = isNear ? REPAIR_CASE_FLOAT_HEIGHT : 0;
     const floatSpeed = isNear
       ? REPAIR_CASE_FLOAT_UP_SPEED
diff --git a/src/components/three/gameplay/RepairCompletionStep.tsx b/src/components/three/gameplay/RepairCompletionStep.tsx
index 621fd03..21ba652 100644
--- a/src/components/three/gameplay/RepairCompletionStep.tsx
+++ b/src/components/three/gameplay/RepairCompletionStep.tsx
@@ -1,5 +1,7 @@
+import { useState } from "react";
 import { RepairObjectModel } from "@/components/three/gameplay/RepairObjectModel";
 import { RepairPromptVideo } from "@/components/three/gameplay/RepairPromptVideo";
+import { RepairMissionCase } from "@/components/three/gameplay/RepairMissionCase";
 import { TriggerObject } from "@/components/three/interaction/TriggerObject";
 import type { RepairMissionConfig } from "@/data/gameplay/repairMissions";
 
@@ -12,31 +14,43 @@ export function RepairCompletionStep({
   config,
   onComplete,
 }: RepairCompletionStepProps): React.JSX.Element {
+  const [isCompleting, setIsCompleting] = useState(false);
+
   return (
     <group>
+      <RepairMissionCase
+        config={config}
+        exiting={isCompleting}
+        onExitComplete={onComplete}
+      />
+
       <RepairObjectModel
         label={config.label}
         modelPath={config.modelPath}
         scale={1}
       />
 
-      <TriggerObject
-        position={[0, 1.1, 0]}
-        colliders="ball"
-        label={`Valider ${config.label}`}
-        onTrigger={onComplete}
-      >
-        <mesh>
-          <torusGeometry args={[1.35, 0.045, 12, 96]} />
-          <meshBasicMaterial color="#22c55e" transparent opacity={0.85} />
-        </mesh>
-        <mesh position={[0, 0.02, 0]} rotation={[Math.PI / 2, 0, 0]}>
-          <ringGeometry args={[0.2, 1.25, 96]} />
-          <meshBasicMaterial color="#bbf7d0" transparent opacity={0.3} />
-        </mesh>
-      </TriggerObject>
+      {!isCompleting ? (
+        <TriggerObject
+          position={[0, 1.1, 0]}
+          colliders="ball"
+          label={`Valider ${config.label}`}
+          onTrigger={() => setIsCompleting(true)}
+        >
+          <mesh>
+            <torusGeometry args={[1.35, 0.045, 12, 96]} />
+            <meshBasicMaterial color="#22c55e" transparent opacity={0.85} />
+          </mesh>
+          <mesh position={[0, 0.02, 0]} rotation={[Math.PI / 2, 0, 0]}>
+            <ringGeometry args={[0.2, 1.25, 96]} />
+            <meshBasicMaterial color="#bbf7d0" transparent opacity={0.3} />
+          </mesh>
+        </TriggerObject>
+      ) : null}
 
-      <RepairPromptVideo src={config.stageUiPath} position={[0, 2.55, 0]} />
+      {!isCompleting ? (
+        <RepairPromptVideo src={config.stageUiPath} position={[0, 2.55, 0]} />
+      ) : null}
     </group>
   );
 }
diff --git a/src/components/three/gameplay/RepairMissionCase.tsx b/src/components/three/gameplay/RepairMissionCase.tsx
index 46bb6a4..7fd6234 100644
--- a/src/components/three/gameplay/RepairMissionCase.tsx
+++ b/src/components/three/gameplay/RepairMissionCase.tsx
@@ -5,12 +5,16 @@ import type { RepairMissionConfig } from "@/data/gameplay/repairMissions";
 
 interface RepairMissionCaseProps {
   config: RepairMissionConfig;
+  exiting?: boolean;
+  onExitComplete?: (() => void) | undefined;
   open?: boolean;
   showFragmentationPrompt?: boolean;
 }
 
 export function RepairMissionCase({
   config,
+  exiting = false,
+  onExitComplete,
   open = false,
   showFragmentationPrompt = false,
 }: RepairMissionCaseProps): React.JSX.Element {
@@ -18,12 +22,14 @@ export function RepairMissionCase({
     <group>
       <RepairCaseModel
         modelPath={REPAIR_CASE_MODEL_PATH}
+        exiting={exiting}
+        onExitComplete={onExitComplete}
         open={open}
         position={config.case.position}
         rotation={config.case.rotation}
         scale={config.case.scale}
       />
-      {showFragmentationPrompt ? (
+      {showFragmentationPrompt && !exiting ? (
         <RepairPromptVideo
           src={config.interactUiPath}
           position={[config.case.position[0], 2.4, config.case.position[2]]}
diff --git a/src/data/docs/docsTranslations.ts b/src/data/docs/docsTranslations.ts
index beda714..cfa2aae 100644
--- a/src/data/docs/docsTranslations.ts
+++ b/src/data/docs/docsTranslations.ts
@@ -442,7 +442,7 @@ Ce document liste les fonctionnalités présentes dans le code actuel.
 
 - \`RepairGame\` de production réutilisable monté pour les états de mission \`bike\`, \`pylone\` et \`ferme\`
 - Configuration de mission partagée via \`src/data/gameplay/repairMissions.ts\`
-- Flow repair-game avec \`waiting -> inspected -> fragmented -> scanning -> repairing -> done -> next mission\`, prompts \`.webm\`, apparition/ouverture de la mallette, touche \`E\`, hold deux poings, transition de modèle explosé, visuels de scan, plusieurs choix de pièces grabbables, validation de la bonne pièce et complétion de mission
+- Flow repair-game avec \`waiting -> inspected -> fragmented -> scanning -> repairing -> done -> next mission\`, prompts \`.webm\`, apparition/ouverture/sortie de la mallette, touche \`E\`, hold deux poings, transition de modèle explosé, visuels de scan, plusieurs choix de pièces grabbables, validation de la bonne pièce et complétion de mission
 
 ## Audio
 
diff --git a/src/data/gameplay/repairCaseConfig.ts b/src/data/gameplay/repairCaseConfig.ts
index 1dc48d1..df05773 100644
--- a/src/data/gameplay/repairCaseConfig.ts
+++ b/src/data/gameplay/repairCaseConfig.ts
@@ -8,6 +8,8 @@ export const REPAIR_CASE_OPEN_ROTATION_OFFSET_DEGREES = 115;
 export const REPAIR_CASE_ANIMATION_DURATION = 0.8;
 export const REPAIR_CASE_POP_DURATION = 0.45;
 export const REPAIR_CASE_POP_Y_OFFSET = -0.25;
+export const REPAIR_CASE_EXIT_DURATION = 0.5;
+export const REPAIR_CASE_EXIT_Y_OFFSET = -0.35;
 
 export const REPAIR_CASE_FLOAT_ACTIVATION_DISTANCE = 5;
 export const REPAIR_CASE_FLOAT_HEIGHT = 1;