WorldSkills 2026 Puts Aircraft Maintenance in Focus: Inside the CNFSimulator A320 VMT

The 48th WorldSkills Competition takes place in Shanghai, China from 22 to 27 September 2026. Organised by WorldSkills International and held every two years, the event is widely described as the Olympics of vocational skills, and Shanghai secured hosting rights in September 2022 through a vote of the WorldSkills General Assembly. Aircraft Maintenance has been a competition skill since 2009. The international competition runs across four days, and the task set has included component replacement, sheet metal repair, engine borescope inspection, flight control rigging, electrical wiring, and aircraft inspection. Competitors are judged by assessors drawn from maintenance organisations and training establishments, against published occupational standards. The structure of that competition describes the structure of the profession. An aircraft maintenance technician inspects, services, troubleshoots, removes, installs, rigs, tests, and repairs. Each of those verbs implies hands-on contact with an aircraft or its components, which is where maintenance training organisations meet their central constraint. The Constraint on Maintenance Training Capacity A Part 147 approved training organisation has a fixed number of training aircraft, engine test rigs, and component benches. Class sizes are set by that hardware, not by demand. A single training aircraft cannot support thirty students performing a landing gear retraction test simultaneously, and fault conditions cannot be introduced into a real aircraft system on demand for teaching purposes. The consequences appear in the syllabus. Fault isolation training, which is the highest-value part of a maintenance curriculum, is the hardest to deliver, because faults have to occur before they can be diagnosed. Students who complete a programme without repeated fault isolation practice arrive at their first job having read about troubleshooting rather than having done it. Virtual maintenance training addresses this constraint directly. Fault conditions can be triggered by an instructor at will, every student works simultaneously at an individual station, and a task can be repeated as many times as required without consuming parts or aircraft availability. What a Virtual Maintenance Trainer Covers The virtual maintenance trainer, referred to across the industry as VMT, and also as a virtual maintenance simulator (VMS), virtual systems maintenance trainer (VSMT), desktop maintenance trainer (DMT), maintenance synthetic trainer (MST), or maintenance training device (MTD), reproduces an aircraft's systems, components, and maintenance procedures in software. A complete implementation covers four task categories. Operation tasks cover system control and normal use. Functional test tasks cover the test procedures a technician performs to confirm a system's condition. Removal and installation tasks cover component replacement against manual procedures. Fault isolation tasks cover diagnosis, using the aircraft's own troubleshooting documentation. The CNFSimulator A320 VMT The CNFSimulator A320 VMT is developed on an Airbus A320 data package and follows the aircraft's maintenance manual. Simulated components correspond to those fitted to the A320. Systems coverage. Twenty ATA chapters are simulated: air conditioning (ATA 21), autoflight (22), communications (23), electrical power (24), equipment and furnishings (25), fire protection (26), flight controls (27), fuel (28), hydraulic power (29), ice and rain protection (30), indicating and recording (31), landing gear (32), lights (33), navigation (34), oxygen (35), pneumatic (36), APU (49), doors (52), fuselage (53), and powerplant (70). Task inventory. The system contains 265 training tasks: 44 operation tasks, 120 functional test tasks, 59 removal and installation tasks, and 42 fault isolation tasks. The fault set includes malfunctions used for flight crew troubleshooting training. Engine configurations. Both CFM56-5B and IAE V2500-A5 configurations are provided. Virtual aircraft and cockpit. A three-dimensional A320 is included, with access panels that open and principal components of each system available in 3D view. Core components rotate for multi-angle inspection, and cutaway or exploded views are provided where internal structure needs to be understood. Major systems have see-through views showing component location within the airframe, and a system can be lifted out of the aircraft for separate study. The full cockpit is reproduced, with every panel switch and button operable by mouse, alongside real-time dynamic system schematics and the 3D aircraft. Documentation access. Aircraft Maintenance Manual (AMM), Illustrated Parts Catalogue (IPC), Structural Repair Manual (SRM), Minimum Equipment List (MEL), and built-in test equipment (BITE) manual references are accessible during tasks. Students perform AMM queries and execute Trouble Shooting Manual procedures after a fault is set, including on the 3D aircraft. Two documentation modes are available: standard maintenance procedure, and a guided mode carrying prompts and step indications. Error protection. Misoperation protection and prompt messages are built into the software, developed with the operating characteristics of beginners in mind and refined across years of customer deployment. Instructor and student management. A classroom configuration comprises 25 VMT software seats, one instructor station, and 24 student stations at two students per station. The instructor station monitors student activity and holds priority over student stations, including initial state configuration, aircraft system settings, and fault triggering. The teaching management system handles examinations, assignment submission, and student status monitoring. Student accounts record study time, completion times for fault isolation exercises, tests and examinations, and completion status, with scoring driven by instructor-defined parameters. Additional capability. A post-flight check and a scheduled check for the A320 are included and can be completed virtually. Flight simulation from takeoff through landing is available on the trainer, with the flight process on one display and aircraft attitude and corresponding actions on another. Instruction manuals and operating documentation are carried on the trainer, with video explanation for some procedures. Training files can be copied and used, and other teaching files in Word, PDF, Excel, PowerPoint and video format can be called up without interrupting the running simulation. The system runs continuously for more than 24 hours in a normal office environment without special temperature or environmental provision. B737-800 VMT and C919 VMT The CNFSimulator VMT line covers three aircraft types. The B737-800 VMT is developed on a Boeing authorised data package. The C919 VMT covers the Chinese narrow-body type. Each follows the same architecture of systems simulation, task inventory, documentation access, and instructor management. Regulatory Alignment The CNFSimulator VMT range is built to support training delivered under EASA Part 66, FAA Part 147, and CCAR-147. The A320 VMT meets the practical training requirements for Class II type training on the A320 as set out in AC-147-04R1, the Chinese advisory circular governing aircraft type and component repair training syllabi. Qualification of a training organisation remains a matter between the organisation and its authority. The device supports the syllabus; the approval attaches to the school. Frequently Asked Questions What is a virtual maintenance trainer? A virtual maintenance trainer is a software-based system reproducing an aircraft's systems, components, cockpit, and maintenance procedures, used by Part 147 and Part 66 training organisations to deliver operation, functional test, removal and installation, and fault isolation training without consuming aircraft or component availability. It is also referred to as a VMT, VMS, VSMT, desktop maintenance trainer, maintenance synthetic trainer, or maintenance training device. Can a VMT replace training on a real aircraft? No. Practical training on aircraft and components remains a regulatory requirement. A VMT expands the volume of procedural and diagnostic practice a student completes before and alongside aircraft access, which raises the value of the limited hangar time available. How many students can work at the same time? A standard classroom configuration supports 24 student stations at two students per station, with one instructor station holding priority control. Larger or smaller configurations can be supplied. Which aircraft types are available? A320, B737-800, and C919. The A320 VMT covers 20 ATA chapters and 265 training tasks, with CFM56-5B and V2500-A5 engine configurations. Can instructors introduce faults during a class? Yes. The instructor station sets initial states, configures aircraft systems, and triggers faults on student stations. Student responses, completion times, and outcomes are recorded and scored against instructor-defined parameters. Contact CnTech Co., Ltd. (CNFSimulator) 1F, Building 3, Lingang Excellence Tech Park, 877 Jiuxin Rd, Songjiang, Shanghai 201615, China Tel: +86-18817570024 Email: info@en.cntech.com | cnfsimulator@gmail.com Web: vmt.cntech.com