GSX Updates

Umberto has been working hard again:

Version 4.0.10 – July 29th, 2026

• GSX Pro NEW: Seated Passengers support for Leonardo SH Maddog 2024 version.

• GSX Pro NEW: The aircraft editor can now define three more connection points on the airplane: the audio port the ground crew plugs their headset into, and two Pre-Conditioned Air (PCA) points. They are placed exactly like the existing GPU point, in both the 2D and the 3D editor, each with its own marker, and they are saved with the rest of the aircraft configuration. Nothing uses them yet: they are being introduced now so aircraft can be prepared for a future update.

• GSX (all versions) Fix: On multi-aircraft (MARS) parkings, customizing one sub-position could unintentionally change the parent position or its other sub-positions — pushback points, passenger and vehicle routes, and per-vehicle settings were all affected. Each sub-position is now properly independent: it still inherits the parent's settings until you customize it, and from then on your edits stay on that sub-position alone, leaving the parent and the other sub-positions untouched.

• GSX (all versions) Fix: A fuel truck that had finished refuelling could still get stuck at the stand — most often boxed in among the baggage loaders working the cargo doors — leaving the loaders idle and the baggage trains held back for several minutes before it finally freed itself, and occasionally not leaving at all until the engine was restarted. Extending the automatic rerouting introduced in the previous version, the fuel truck now reliably makes its way out as soon as refuelling is complete, with both tanker and underground-hydrant fuelling, so loading and the rest of the turnaround are no longer stalled.

• GSX (all versions) Fix: When the destination was your last flight of the session and you closed the simulator without departing again, the ground-handling invoice for that turnaround — whose charges you could see building up on the status page — was never issued. It is now produced when you quit and is kept in your invoice history.

• GSX (all versions) Fix: Refuelling now works on aircraft that use the newer Microsoft Flight Simulator fuel system, such as the ATR 42/72, which previously could fail to take on fuel.

• GSX (all versions) Fix: On aircraft that ask you to set the fuel quantity from their own fuel system, an uplift too large for a single tanker forgot what you had asked for: when the second truck arrived it prompted you to set the quantity all over again, and would only continue if you entered a new figure for each truck. The remaining quantity is now carried over, so every following tanker simply resumes where the previous one left off until the amount you originally asked for is on board.

• GSX (all versions) Fix: On some aircraft a baggage loader could hold back waiting for the catering service to finish before approaching, even when the two never share the same space; it no longer waits unnecessarily.

• GSX (all versions) Fix: On aircraft fitted with their own airstairs, the question asking whether to use the airplane's airstairs or the airport stairs was only asked when selecting a gate before departure, never when choosing a stand to park at after landing — so the arrival was always served with airport stairs. The question is now asked when you pick the stand on the ground as well, in time for your answer to decide which vehicles are sent to the aircraft.

• GSX (all versions) Fix: A member of the cleaning crew could momentarily jump from one spot to another while walking through the cabin; they now move smoothly along the whole route.

• GSX (all versions) Fix: In MSFS 2024, starting a flight and walking around the aircraft in first-person (avatar) view could make the GSX menu flash open and close on its own, with the ground-services menu unavailable until you had first sat in the cockpit. The menu now opens normally in avatar view.

• GSX (all versions) Fix: Taxiing onto a de-icing pad when GSX did not consider icing conditions to be present could leave the menu unable to open at all, appearing as though GSX had stopped responding. GSX now tells you exactly which condition is missing — for example the ambient temperature being above the threshold below which icing is possible — and still opens the normal parking-selection menu, so you are never left without a menu.

• GSX Pro Fix: Ground vehicles could arrive missing the figure that belongs with them — most often reported as the passenger stairs turning up with no operator standing at them, but the same could happen to the fuel operator, the GPU operator and the baggage train crew. The figure is a separate object attached to the vehicle, and GSX could attach it before the simulator had finished creating it, in which case it silently never appeared. Whether it happened depended on how quickly the simulator responded, which is why it affected some users constantly and others never. GSX now waits for the figure to exist before attaching it.

• GSX (all versions) Fix: Calling a ground service again after another service had already sent its vehicles away could leave GSX completely stuck: the vehicles never turned up, no further menu selection did anything, and only restarting the flight recovered it. The most commonly reported case was calling the passenger stairs back after a cleaning crew visit. GSX was still trying to drive vehicles that had been dismissed and replaced in the meantime, and now always uses the current ones.

• GSX (all versions) Fix: Calling de-icing at a remote de-icing pad could leave nothing happening at all: no de-icing vehicles arrived, and from that moment the GSX menu no longer opened, with the whole product appearing frozen until the flight was restarted. De-icing at the parking was unaffected. Arriving at a remote pad was mistakenly treated as a move to a different airport, which tore down the ground services that had just been set up and then stalled part-way through. De-icing at a remote pad now works normally, and — as intended — the de-icing trucks are the only vehicles that come to meet you there.

• GSX (FSX/P3D) Fix: When the GSX battery charger stopped — for example when the jetway power unit was disconnected — the readout on the charger panel was not always blanked, so it could be left showing the last charge and voltage readings, and an error was reported every time charging ended. The panel is now cleared reliably.

• GSX Pro Fix (MSFS 2024): Opening the GSX EFB app before GSX had finished starting could leave it stuck on an empty page: it never noticed the engine coming up afterwards, so the app had to be closed and reopened. It now keeps looking for GSX in the background and connects by itself as soon as the engine is available.

• GSX Pro Change: Further reduced the overhead of the Remote control server. Every time a client connected — the web remote, the EFB, or the Stream Deck plugin — GSX rebuilt its complete state from scratch to send it, so a client reconnecting repeatedly made it do that work over and over. Clients connecting close together now share a single build, which cuts the cost of a reconnect, of several devices connected at once, and of any client that keeps dropping and coming back.

• GSX Pro Fix: With the Remote control active, a brief stutter could occur every few seconds, getting worse the more devices were connected. A large block of reference data was being resent to every connected client on a timer even though it had not actually changed. It is now sent only when it really changes, removing the recurring hitch.

• GSX (all versions) NEW: Handler scripts can now query the current icing conditions with a new isIcingConditions() function, returning whether GSX considers icing to be present — the same weather assessment that drives the de-icing service. See the Handler Scripts Developer Guide for details.

• GSX (all versions) NEW: Added the following Handling operators: Air Tindi, Canadian North (Canada), ATS Korea (South Korea), Vietjet Ground Service (Vietnam), Zadar Airport (Croatia), Jeju Air Service (updated logo).

• GSX (all versions) NEW: Added the following Catering operators: Eastar Jet Catering, Jeju Air Catering, T'way Air Catering (South Korea), Sky Chefs (USA), SriLankan Catering (Sri Lanka).

• GSX Pro NEW: Added the following Refueling operators: Ampol (Australia), BAFS (Thailand), Ceypetco (Sri Lanka), Petrolimex, Skypec (Vietnam).