Preventive Maintenance

Preventing failures is possible. Scheduled inspections, predictive monitoring, and full service documentation keep equipment at full operational readiness while lowering operating costs.

Preventive maintenance — service engineer during a scheduled electronics inspection

01 — Process

How does our process work?

Every engagement starts with a free diagnostic assessment or site survey — at the customer's site or at our facility near Wrocław.

01

Preparation and inspection

During the site survey we perform an initial diagnosis and plan spare parts, tools, and the team.

02

Planning

We build a Preventive Maintenance schedule tailored to the equipment's duty cycle.

03

Service work

We carry out the planned tasks — replacing worn components, lubrication, adjustments, and other scheduled activities.

04

Verification testing

Functional testing and electrical safety checks.

05

Report and alerts

We deliver documentation and predictive alerts on upcoming wear.

02 — Comparison

Electronics maintenance vs. mechanical maintenance

While electronics and mechanics are two distinct worlds, they share one priority — acting ahead of time. Preventive maintenance always outperforms costly, stressful repairs after a failure.

Electronics maintenance
Mechanical maintenance
Main goal
Preventing failures of control, power, and communication systems
Preserving the integrity of structures, drivetrains, and power components
Typical activities
PCB cleaning, capacitor replacement, ESD testing, sensor re-calibration
Lubrication, clearance adjustment, bearing and seal replacement, geometry checks
Stations and tools
ESD workbenches, signal analyzers, soldering stations, borescope and thermal inspection
CNC machine tools, hydraulic presses, torque wrenches
Key standards
IPC-7711/7721, IEC 61340-5-1, AQAP 2110
MIL-STD-810, ISO 1940-1, AQAP 2110
Frequency
Every 6–12 months or per operating cycle count
Every 3–12 months or per engine hours / mileage

03 — Scope

Equipment scope covered by preventive maintenance

We support a broad portfolio of equipment — from IT infrastructure to aviation gear and test equipment.

  • Flight simulators: projection systems, avionics, automation, hydraulics, HVAC
  • Test and measurement equipment: testers, stations, measurement systems, sensors
  • IT infrastructure: graphics cards, motherboards, servers, network devices
  • Building infrastructure: all components of UPS and HVAC systems
  • Vehicles: engines, drivetrains, power systems, electronics
  • Workshop and test equipment: CNC machines, climate chambers, analyzers
  • Batteries and power systems: capacity testing, cell balancing, replacement, upgrades

04 — Benefits

Benefits for the customer

Fewer failures — higher availability

Up to a 70% reduction in unplanned downtime. Equipment runs when it's needed.

Lower costs

Scheduled work is up to 50% cheaper than emergency repairs.

Full documentation

A complete report and calibration certificates for every job.

Flexibility

No need to ship equipment directly to foreign manufacturers.

05 — Standards

Delivery standards

  • Schedules aligned with manufacturer requirements
  • Predictive AI/ML models for key subsystems and equipment
  • ISO 9001:2015 and AQAP 2110
  • Team holding IPC and ESD certifications

06 — Data protection

Data protection

Diagnostic and job report data is processed in encrypted / dedicated databases on local networks or in European data centers compliant with ISO 27001. Access is granted only to personnel holding the appropriate industrial security clearance and authorized by the customer.

07 — Building systems

Building and critical infrastructure

HVAC, backup power, and building automation work in the background — but the safety of people, equipment, and mission continuity depend on them. We provide full service for these installations: from diagnostics and rapid repairs, through predictive maintenance, to upgrades compliant with current EU requirements.

  • HVAC — air handling units, chilled water plants, rooftop units, and precision server room air conditioners
  • Power and UPS — diesel generators, online UPS, MV/LV switchgear, grounding systems and PDUs
  • Ventilation and filtration — CBRN filter walls, overpressure systems, fire dampers, heat recovery units
  • Emergency systems — FM-200 / Novec 1230 gas suppression, fire detection, leak monitoring
  • BMS automation — PLC controllers, SCADA, BACnet / Modbus networks, environmental sensors
  • Power infrastructure — busbar systems, transformers, reactive power compensation, energy storage
  • Auxiliary installations — access control for technical rooms, CCTV, emergency lighting

HVAC retrofit to new EU refrigerants

We design complete retrofit kits to convert older HVAC units to the new refrigerants required by EU regulations — replacing compressors and nozzles, then performing a certified leak test.

Live maintenance of critical server rooms

In facilities requiring uninterrupted operation, we use air-side bypasses and UPS/generator redundancy — service work is performed without interrupting critical IT systems.

10+ years of experience: the server rooms and HVAC/UPS installations we maintain operate at ≥ 99.9% availability, and the average time to restore emergency power after an incident does not exceed 3 hours. Our work at the Simulator Center in Dęblin reduced the annual energy consumption of server room and simulator hall air conditioning — while maintaining a certified temperature and humidity environment.

FAQ

Frequently asked questions

How often should preventive maintenance be performed?

Typically every 6 or 12 months, but we tailor the schedule to usage intensity. In special cases (e.g., flight simulator visualization systems), preventive work is carried out even more frequently.

Do you offer remote monitoring between inspections?

Yes — we use solutions that send predictive alerts on upcoming wear. The system can be deployed in various ways: from analysis of visual data and user logs to an IoT sensor network.

How can equipment lifespan be extended?

Regular preventive inspections can extend full functionality by 10–15 years beyond the manufacturer's nominal expectation. Key factors are early planning of spare parts availability (logistics packages) and monitoring wear indicators.

How does predictive AI/ML/IoT analytics work in maintenance?

Our algorithms learn normal operating patterns from available sources (e.g., sensor data or logs) and then detect deviations indicating upcoming component wear. The AI platform processes data in real time and generates alerts up to several weeks in advance.

Can you service equipment without shutting down a critical server room?

Yes — as part of our live maintenance strategy, we use air-side bypasses, UPS/generator redundancy, and N+1 mode operation. This lets us perform maintenance and repairs without interrupting the customer's IT service continuity.

Let's talk

Let's plan a preventive maintenance program for your fleet

Want to reduce downtime and extend equipment lifespan? A&D Serwis will prepare an inspection schedule, predictive monitoring, and full documentation compliant with OEM, MoD, and NATO requirements.