diff --git a/src/features/online-board/components/details-panels/AircraftPanel.test.tsx b/src/features/online-board/components/details-panels/AircraftPanel.test.tsx
index 138cb6a4..dbb3eef8 100644
--- a/src/features/online-board/components/details-panels/AircraftPanel.test.tsx
+++ b/src/features/online-board/components/details-panels/AircraftPanel.test.tsx
@@ -67,6 +67,25 @@ describe("AircraftPanel", () => {
     expect(screen.getByTestId("aircraft-panel")).toBeTruthy();
   });
 
+  // §4.1.15.4: tail number (registration mark) in aircraft panel
+  it("4.1.15.4-TailNumber: renders tail number when aircraft.registration is present", () => {
+    const eq: IEquipmentFull = {
+      aircraft: { actual: { title: "Airbus A320", registration: "VP-BQS" } },
+    };
+    render(<AircraftPanel equipment={eq} />);
+    expect(screen.getByText("VP-BQS")).toBeTruthy();
+    // label key is AIRPLANE.TAIL-NUMBER (t mock returns key)
+    expect(screen.getByText("AIRPLANE.TAIL-NUMBER")).toBeTruthy();
+  });
+
+  it("4.1.15.4-TailNumber-Absent: omits tail-number row when registration is not present", () => {
+    const eq: IEquipmentFull = {
+      aircraft: { actual: { title: "Airbus A320" } },
+    };
+    render(<AircraftPanel equipment={eq} />);
+    expect(screen.queryByText("AIRPLANE.TAIL-NUMBER")).toBeNull();
+  });
+
   // §4.1.15.9: previous-flight chip must be a link (opens new tab) when the
   // flight's scheduled departure date is more recent than today − 2 days.
   describe("previous-flight link (§4.1.15.9)", () => {
diff --git a/src/features/online-board/components/details-panels/AircraftPanel.tsx b/src/features/online-board/components/details-panels/AircraftPanel.tsx
index 0d9c25f5..32f8d880 100644
--- a/src/features/online-board/components/details-panels/AircraftPanel.tsx
+++ b/src/features/online-board/components/details-panels/AircraftPanel.tsx
@@ -112,6 +112,11 @@ export const AircraftPanel: FC<AircraftPanelProps> = ({
     className?: string;
   }> = [];
   if (aircraft?.name) props.push({ label: t("AIRPLANE.NAME"), value: aircraft.name });
+  // §4.1.15.4: tail number (registration mark, e.g. "VP-BQS") from the
+  // aircraft.actual.registration field. Shown when present.
+  if (aircraft?.registration) {
+    props.push({ label: t("AIRPLANE.TAIL-NUMBER"), value: aircraft.registration });
+  }
   if (total > 0) props.push({ label: t("AIRPLANE.SEATS-TOTAL"), value: total });
   if (economy > 0) props.push({ label: t("AIRPLANE.SEATS-ECONOMY"), value: economy });
   if (comfort > 0) props.push({ label: t("AIRPLANE.SEATS-COMFORT"), value: comfort });
diff --git a/src/features/online-board/components/details-panels/BoardingPanel.test.tsx b/src/features/online-board/components/details-panels/BoardingPanel.test.tsx
index 6766c25e..9da85bff 100644
--- a/src/features/online-board/components/details-panels/BoardingPanel.test.tsx
+++ b/src/features/online-board/components/details-panels/BoardingPanel.test.tsx
@@ -43,4 +43,31 @@ describe("BoardingPanel", () => {
     render(<BoardingPanel item={baseItem} />);
     expect(screen.getByTestId("boarding-panel")).toBeTruthy();
   });
+
+  // §4.1.15.4: departure gate + transfer type in boarding panel (Angular parity)
+  it("4.1.15.4-Boarding-Gate: renders gate row when departure.gate is present", () => {
+    render(<BoardingPanel item={baseItem} departure={{ dispatch: undefined, gate: "D5" }} />);
+    expect(screen.getByTestId("boarding-gate")).toBeTruthy();
+    expect(screen.getByText("D5")).toBeTruthy();
+    expect(screen.getByText("SHARED.NUMBER-EXIT")).toBeTruthy();
+  });
+
+  it("4.1.15.4-Boarding-Dispatch: renders dispatch type row when departure.dispatch is present", () => {
+    render(<BoardingPanel item={baseItem} departure={{ dispatch: "Bus", gate: undefined }} />);
+    expect(screen.getByTestId("boarding-dispatch")).toBeTruthy();
+    // t mock returns key — dispatch key is "DISPATCH.Bus"
+    expect(screen.getByText("DISPATCH.Bus")).toBeTruthy();
+    expect(screen.getByText("SHARED.LANDING-TRANSFER")).toBeTruthy();
+  });
+
+  it("4.1.15.4-Boarding-NoGate: omits gate row when departure.gate is absent", () => {
+    render(<BoardingPanel item={baseItem} departure={{ dispatch: undefined, gate: undefined }} />);
+    expect(screen.queryByTestId("boarding-gate")).toBeNull();
+  });
+
+  it("4.1.15.4-Boarding-NoDeparture: omits gate/dispatch rows when departure prop is not passed", () => {
+    render(<BoardingPanel item={baseItem} />);
+    expect(screen.queryByTestId("boarding-gate")).toBeNull();
+    expect(screen.queryByTestId("boarding-dispatch")).toBeNull();
+  });
 });
diff --git a/src/features/online-board/components/details-panels/BoardingPanel.tsx b/src/features/online-board/components/details-panels/BoardingPanel.tsx
index bfaa530c..01a82813 100644
--- a/src/features/online-board/components/details-panels/BoardingPanel.tsx
+++ b/src/features/online-board/components/details-panels/BoardingPanel.tsx
@@ -5,7 +5,7 @@ import {
   formatUtcOffset,
   formatDayMonthYear,
 } from "@/shared/utils/datetime/index.js";
-import type { IFlightTransitionItem, FlightTransitionStatus } from "../../types.js";
+import type { IFlightTransitionItem, IFlightLegDepartureStation, FlightTransitionStatus } from "../../types.js";
 import "./panels.scss";
 
 function formatTransitionTimestamp(iso: string): string {
@@ -25,9 +25,11 @@ const STATUS_KEYS: Record<FlightTransitionStatus, string> = {
 
 export interface BoardingPanelProps {
   item: IFlightTransitionItem;
+  /** Departure station — used to show transfer type + gate (§4.1.15.4). */
+  departure?: Pick<IFlightLegDepartureStation, "dispatch" | "gate">;
 }
 
-export const BoardingPanel: FC<BoardingPanelProps> = ({ item }) => {
+export const BoardingPanel: FC<BoardingPanelProps> = ({ item, departure }) => {
   const { t } = useTranslation();
   const hasEnd = Boolean(item.end?.local);
 
@@ -47,6 +49,20 @@ export const BoardingPanel: FC<BoardingPanelProps> = ({ item }) => {
           <span className="details-panel__value">{formatTransitionTimestamp(item.end.local)}</span>
         </div>
       )}
+      {/* §4.1.15.4: dispatch type (Bus / Bridge) and departure gate from boarding panel
+          Angular parity: flight-details-boarding.component.html lines 17–24 */}
+      {departure?.dispatch && (
+        <div className="details-panel__row" data-testid="boarding-dispatch">
+          <span className="details-panel__label">{t("SHARED.LANDING-TRANSFER")}</span>
+          <span className="details-panel__value">{t(`DISPATCH.${departure.dispatch}`)}</span>
+        </div>
+      )}
+      {departure?.gate && (
+        <div className="details-panel__row" data-testid="boarding-gate">
+          <span className="details-panel__label">{t("SHARED.NUMBER-EXIT")}</span>
+          <span className="details-panel__value">{departure.gate}</span>
+        </div>
+      )}
     </div>
   );
 };
diff --git a/src/features/online-board/components/details-panels/FlightDetailsAccordion.test.tsx b/src/features/online-board/components/details-panels/FlightDetailsAccordion.test.tsx
index c88c2225..b3fdb97d 100644
--- a/src/features/online-board/components/details-panels/FlightDetailsAccordion.test.tsx
+++ b/src/features/online-board/components/details-panels/FlightDetailsAccordion.test.tsx
@@ -40,6 +40,29 @@ function makeLeg(overrides: Partial<IFlightLeg> = {}): IFlightLeg {
   return { ...base, ...overrides };
 }
 
+function makeLegWithBoarding(gate?: string, dispatch?: string): IFlightLeg {
+  return makeLeg({
+    departure: {
+      scheduled: { airport: "JFK", airportCode: "JFK", city: "New York", cityCode: "NYC", countryCode: "US" },
+      dispatch,
+      gate,
+      terminal: "",
+      checkingStatus: "Scheduled",
+      parkingStand: "",
+      times: { scheduledDeparture: { dayChange: { value: 0, title: "" }, local: "", localTime: "", tzOffset: 0, utc: "" } },
+    },
+    transition: {
+      boarding: {
+        start: { dayChange: { value: 0, title: "" }, local: "11:00", localTime: "11:00", tzOffset: 0, utc: "" },
+        end: { dayChange: { value: 0, title: "" }, local: "11:30", localTime: "11:30", tzOffset: 0, utc: "" },
+        status: "InProgress",
+        isActual: true,
+      },
+    },
+    status: "InFlight",
+  });
+}
+
 describe("FlightDetailsAccordion", () => {
   it("returns null when no panels should be visible", () => {
     const leg = makeLeg();
@@ -106,4 +129,28 @@ describe("FlightDetailsAccordion", () => {
     render(<FlightDetailsAccordion leg={leg} viewType="Onlineboard" />);
     expect(screen.getByText("DETAILS.ON_BOARD_SERVICES")).toBeTruthy();
   });
+
+  // §4.1.15.4: departure gate + transfer type in boarding panel row
+  describe("boarding row gate + dispatch (§4.1.15.4)", () => {
+    it("4.1.15.4-AccordionBoarding-Gate: shows gate in boarding body when departure.gate is set", () => {
+      const leg = makeLegWithBoarding("D5", undefined);
+      render(<FlightDetailsAccordion leg={leg} viewType="Onlineboard" />);
+      expect(screen.getByTestId("boarding-gate")).toBeTruthy();
+      expect(screen.getByText("D5")).toBeTruthy();
+    });
+
+    it("4.1.15.4-AccordionBoarding-Dispatch: shows dispatch in boarding body when departure.dispatch is set", () => {
+      const leg = makeLegWithBoarding(undefined, "Bus");
+      render(<FlightDetailsAccordion leg={leg} viewType="Onlineboard" />);
+      expect(screen.getByTestId("boarding-dispatch")).toBeTruthy();
+      expect(screen.getByText("DISPATCH.Bus")).toBeTruthy();
+    });
+
+    it("4.1.15.4-AccordionBoarding-NoFields: omits gate/dispatch rows when departure has neither", () => {
+      const leg = makeLegWithBoarding(undefined, undefined);
+      render(<FlightDetailsAccordion leg={leg} viewType="Onlineboard" />);
+      expect(screen.queryByTestId("boarding-gate")).toBeNull();
+      expect(screen.queryByTestId("boarding-dispatch")).toBeNull();
+    });
+  });
 });
diff --git a/src/features/online-board/components/details-panels/FlightDetailsAccordion.tsx b/src/features/online-board/components/details-panels/FlightDetailsAccordion.tsx
index 6229aa4a..16442a60 100644
--- a/src/features/online-board/components/details-panels/FlightDetailsAccordion.tsx
+++ b/src/features/online-board/components/details-panels/FlightDetailsAccordion.tsx
@@ -161,7 +161,25 @@ export const FlightDetailsAccordion: FC<FlightDetailsAccordionProps> = ({ leg, v
       icon: ICON_BOARDING,
       title: t("DETAILS.BOARDING"),
       statusStatus: boarding.status,
-      body: <TransitionTimes item={boarding} testId="boarding-times" />,
+      body: (
+        <>
+          <TransitionTimes item={boarding} testId="boarding-times" />
+          {/* §4.1.15.4: dispatch type (Bus / Bridge) and departure gate.
+              Angular parity: flight-details-boarding.component.html lines 17–24 */}
+          {leg.departure.dispatch && (
+            <div className="details-panel__row" data-testid="boarding-dispatch">
+              <span className="details-panel__label">{t("SHARED.LANDING-TRANSFER")}</span>
+              <span className="details-panel__value">{t(`DISPATCH.${leg.departure.dispatch}`)}</span>
+            </div>
+          )}
+          {leg.departure.gate && (
+            <div className="details-panel__row" data-testid="boarding-gate">
+              <span className="details-panel__label">{t("SHARED.NUMBER-EXIT")}</span>
+              <span className="details-panel__value">{leg.departure.gate}</span>
+            </div>
+          )}
+        </>
+      ),
       legacyTestId: "boarding-panel",
       isTransition: true,
     });
@@ -229,6 +247,9 @@ export const FlightDetailsAccordion: FC<FlightDetailsAccordionProps> = ({ leg, v
     if (row.id === "boarding" && leg.transition?.boarding) {
       legacyPanels.push(
         <div key="legacy-boarding" className="visually-hidden">
+          {/* departure prop intentionally omitted — dispatch/gate already
+              rendered in the visible accordion row body above to avoid
+              duplicate data-testid="boarding-gate/dispatch" in the DOM. */}
           <BoardingPanel item={leg.transition.boarding} />
         </div>,
       );
diff --git a/src/i18n/locales/de/common.json b/src/i18n/locales/de/common.json
index 8cd74d91..876dd392 100644
--- a/src/i18n/locales/de/common.json
+++ b/src/i18n/locales/de/common.json
@@ -4,7 +4,8 @@
         "SEATS-BUSINESS": "",
         "SEATS-COMFORT": "",
         "SEATS-ECONOMY": "",
-        "SEATS-TOTAL": ""
+        "SEATS-TOTAL": "",
+        "TAIL-NUMBER": "Kennzeichen"
     },
     "BOARD": {
         "ARRIVAL": "Ankunft",
diff --git a/src/i18n/locales/en/common.json b/src/i18n/locales/en/common.json
index 439d7bfa..d06c33cf 100644
--- a/src/i18n/locales/en/common.json
+++ b/src/i18n/locales/en/common.json
@@ -4,7 +4,8 @@
         "SEATS-BUSINESS": "Business",
         "SEATS-COMFORT": "Comfort",
         "SEATS-ECONOMY": "Economy",
-        "SEATS-TOTAL": "Number of seats"
+        "SEATS-TOTAL": "Number of seats",
+        "TAIL-NUMBER": "Tail number"
     },
     "BOARD": {
         "ARRIVAL": "Arrival",
diff --git a/src/i18n/locales/es/common.json b/src/i18n/locales/es/common.json
index 026eae43..e5ee919c 100644
--- a/src/i18n/locales/es/common.json
+++ b/src/i18n/locales/es/common.json
@@ -4,7 +4,8 @@
         "SEATS-BUSINESS": "",
         "SEATS-COMFORT": "",
         "SEATS-ECONOMY": "",
-        "SEATS-TOTAL": ""
+        "SEATS-TOTAL": "",
+        "TAIL-NUMBER": "Matrícula"
     },
     "BOARD": {
         "ARRIVAL": "Llegada",
diff --git a/src/i18n/locales/fr/common.json b/src/i18n/locales/fr/common.json
index 06b76000..7cb3b4a6 100644
--- a/src/i18n/locales/fr/common.json
+++ b/src/i18n/locales/fr/common.json
@@ -4,7 +4,8 @@
         "SEATS-BUSINESS": "",
         "SEATS-COMFORT": "",
         "SEATS-ECONOMY": "",
-        "SEATS-TOTAL": ""
+        "SEATS-TOTAL": "",
+        "TAIL-NUMBER": "Immatriculation"
     },
     "BOARD": {
         "ARRIVAL": "Arrivée",
diff --git a/src/i18n/locales/it/common.json b/src/i18n/locales/it/common.json
index f862db6a..af3300fd 100644
--- a/src/i18n/locales/it/common.json
+++ b/src/i18n/locales/it/common.json
@@ -4,7 +4,8 @@
         "SEATS-BUSINESS": "",
         "SEATS-COMFORT": "",
         "SEATS-ECONOMY": "",
-        "SEATS-TOTAL": ""
+        "SEATS-TOTAL": "",
+        "TAIL-NUMBER": "Numero di coda"
     },
     "BOARD": {
         "ARRIVAL": "Arrivo",
diff --git a/src/i18n/locales/ja/common.json b/src/i18n/locales/ja/common.json
index 10f95ee4..c0aacfae 100644
--- a/src/i18n/locales/ja/common.json
+++ b/src/i18n/locales/ja/common.json
@@ -4,7 +4,8 @@
         "SEATS-BUSINESS": "",
         "SEATS-COMFORT": "",
         "SEATS-ECONOMY": "",
-        "SEATS-TOTAL": ""
+        "SEATS-TOTAL": "",
+        "TAIL-NUMBER": "機体番号"
     },
     "BOARD": {
         "ARRIVAL": "到着",
diff --git a/src/i18n/locales/ko/common.json b/src/i18n/locales/ko/common.json
index 6393c060..2c99f4b7 100644
--- a/src/i18n/locales/ko/common.json
+++ b/src/i18n/locales/ko/common.json
@@ -4,7 +4,8 @@
         "SEATS-BUSINESS": "",
         "SEATS-COMFORT": "",
         "SEATS-ECONOMY": "",
-        "SEATS-TOTAL": ""
+        "SEATS-TOTAL": "",
+        "TAIL-NUMBER": "꼬리번호"
     },
     "BOARD": {
         "ARRIVAL": "도착",
diff --git a/src/i18n/locales/ru/common.json b/src/i18n/locales/ru/common.json
index 36b02a7a..19678b0e 100644
--- a/src/i18n/locales/ru/common.json
+++ b/src/i18n/locales/ru/common.json
@@ -4,7 +4,8 @@
         "SEATS-BUSINESS": "Бизнес",
         "SEATS-COMFORT": "Комфорт",
         "SEATS-ECONOMY": "Эконом",
-        "SEATS-TOTAL": "Количество мест"
+        "SEATS-TOTAL": "Количество мест",
+        "TAIL-NUMBER": "Бортовой номер"
     },
     "BOARD": {
         "ARRIVAL": "Прилет",
diff --git a/src/i18n/locales/zh/common.json b/src/i18n/locales/zh/common.json
index 939a5d6e..c0214eef 100644
--- a/src/i18n/locales/zh/common.json
+++ b/src/i18n/locales/zh/common.json
@@ -4,7 +4,8 @@
         "SEATS-BUSINESS": "",
         "SEATS-COMFORT": "",
         "SEATS-ECONOMY": "",
-        "SEATS-TOTAL": ""
+        "SEATS-TOTAL": "",
+        "TAIL-NUMBER": "机尾号"
     },
     "BOARD": {
         "ARRIVAL": "到达",