diff --git a/hdw-a339x/src/wasm/systems/a320_systems/src/air_conditioning.rs b/hdw-a339x/src/wasm/systems/a320_systems/src/air_conditioning.rs
index 3e3041824..31e5c1f98 100644
--- a/hdw-a339x/src/wasm/systems/a320_systems/src/air_conditioning.rs
+++ b/hdw-a339x/src/wasm/systems/a320_systems/src/air_conditioning.rs
@@ -949,12 +949,12 @@ impl SimulationElement for PressurizationSystemInterfaceUnit {
 struct A320PressurizationConstants;
 
 impl PressurizationConstants for A320PressurizationConstants {
-    // Volume data from A320 AIRCRAFT CHARACTERISTICS - AIRPORT AND MAINTENANCE PLANNING
-    const CABIN_ZONE_VOLUME_CUBIC_METER: f64 = 139.; // m3
-    const COCKPIT_VOLUME_CUBIC_METER: f64 = 9.; // m3
+    // Volume data from A330 AIRCRAFT CHARACTERISTICS - AIRPORT AND MAINTENANCE PLANNING
+    const CABIN_ZONE_VOLUME_CUBIC_METER: f64 = 372.; // m3
+    const COCKPIT_VOLUME_CUBIC_METER: f64 = 12.; // m3
     const FWD_CARGO_ZONE_VOLUME_CUBIC_METER: f64 = 0.; // m3 Not used in A320
     const BULK_CARGO_ZONE_VOLUME_CUBIC_METER: f64 = 0.; // m3 Not used in A320
-    const PRESSURIZED_FUSELAGE_VOLUME_CUBIC_METER: f64 = 330.; // m3
+    const PRESSURIZED_FUSELAGE_VOLUME_CUBIC_METER: f64 = 1056.; // m3
     const CABIN_LEAKAGE_AREA: f64 = 0.0003; // m2
     const OUTFLOW_VALVE_SIZE: f64 = 0.05; // m2
     const SAFETY_VALVE_SIZE: f64 = 0.02; // m2
diff --git a/hdw-a339x/src/wasm/systems/a320_systems/src/payload/mod.rs b/hdw-a339x/src/wasm/systems/a320_systems/src/payload/mod.rs
index bccbf54e2..7349c6783 100644
--- a/hdw-a339x/src/wasm/systems/a320_systems/src/payload/mod.rs
+++ b/hdw-a339x/src/wasm/systems/a320_systems/src/payload/mod.rs
@@ -57,7 +57,12 @@ pub enum A320Cargo {
     AftBaggage,
     AftBulkLoose,
 }
-
+#[cfg(test)]
+impl From<A320Cargo> for usize {
+    fn from(value: A320Cargo) -> Self {
+        value as usize
+    }
+}
 #[cfg(test)]
 impl From<usize> for A320Cargo {
     fn from(value: usize) -> Self {
@@ -171,7 +176,6 @@ impl A320Payload {
         let per_pax_weight = Rc::new(Cell::new(Mass::new::<kilogram>(
             Self::DEFAULT_PER_PAX_WEIGHT_KG,
         )));
-
         let developer_state = Rc::new(Cell::new(0));
         let boarding_sounds = BoardingSounds::new(context);
         let pax = Self::A320_PAX.map(|p| {
diff --git a/hdw-a339x/src/wasm/systems/a320_systems_wasm/src/lib.rs b/hdw-a339x/src/wasm/systems/a320_systems_wasm/src/lib.rs
index af55d9efb..c2bce43e1 100644
--- a/hdw-a339x/src/wasm/systems/a320_systems_wasm/src/lib.rs
+++ b/hdw-a339x/src/wasm/systems/a320_systems_wasm/src/lib.rs
@@ -26,7 +26,8 @@ use spoilers::spoilers;
 use std::error::Error;
 use systems::air_conditioning::{
     acs_controller::AcscId, cabin_pressure_controller::CpcId, Channel, ZoneType,
-};use systems::failures::FailureType;
+};
+use systems::failures::FailureType;
 use systems::shared::{
     AirbusElectricPumpId, AirbusEngineDrivenPumpId, ElectricalBusType, GearActuatorId,
     HydraulicColor, LgciuId, ProximityDetectorId,