Croatia Airlines A319 mirrored on wet apron at dawn, Zagreb
Digital Solutions for Aviation Operations

Aviation maintenance,
re-engineered for the digital age.

KS AeroDigital · Zagreb, Croatia
Founded by Karlo Šiljevinac · EASA Part-66 B2 · Croatia Airlines MCC

We turn two decades of hands-on EASA line maintenance into modern software — paperless work orders, faster turnarounds, and full traceability. Built by an engineer who lives the job on the ramp every day.

eWorkOrder EASA Part-145 MRO Digitisation Line Maintenance AOG Capable
SCROLL
23+Years in Aviation
8Aircraft Type Ratings
B2EASA Part-66 Licence
100%Paperless Work Orders
What We Do

Services

From the ramp to the code editor — hands-on aviation expertise combined with modern software development.

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01 — SOFTWARE
MRO Digital Work Orders
Custom maintenance work order systems for EASA Part-145 organisations. eWorkOrder (AeroWorks) is our flagship — built on real operational experience, not guesswork.
eWorkOrderMySQLPDFSignatures
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02 — CONSULTING
MRO Digitisation
Advisory and implementation for moving paper-based maintenance processes to digital workflows. Gap analysis, system design, and staff training — fully EASA-aligned.
Process ReformComplianceTraining
✈️
03 — MAINTENANCE
EASA Line Maintenance
Licensed certifying engineer for contract line maintenance. AOG capability, transit checks, defect rectification, and CRS issuing on Airbus, ATR, and Bombardier fleets.
A220A320 FamQ400ATR 42/72AOG
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04 — DOCUMENTATION
Technical Documentation
Preparation, review, and digitisation of technical documentation — task cards, maintenance procedures, and EASA Forms. Modernising legacy paper-based systems.
AMM / FIMTask CardsEASA Forms
Portfolio

Projects

Digital tools built for the aviation maintenance industry — designed, coded, and tested by a practising engineer.

Glass cockpit of an Airbus A220 at Zagreb
Live · Try it
AWeWorkOrder
MRO Software · AeroWorks
eWorkOrder — Digital Work Orders
A complete maintenance work order system for EASA Part-145 MROs. Locked digital signatures, barcode & ATA-chapter PDF output, fleet database, role-based access, and a MySQL backend. Designed by a certifying engineer, for engineers.
EASA Part-145jsPDFMySQLSignaturesBarcode
Open Project → 2026
Turbofan engine intake close-up
In Development
DTDefectTrack
MRO Software
Defect & MEL Tracker
Digital tracking of deferred defects, MEL/CDL items, and rectification intervals — with automatic expiry alerts and a clean dashboard for the MCC.
MEL / CDLDashboardAlerts
Coming soon 2026
Avionics displays with Croatia Airlines landing card
Concept
TCTaskCards
Documentation
Digital Task Card Builder
Turn AMM procedures into structured, sign-off-ready digital task cards with embedded references, photos, and step-by-step compliance tracking.
AMMTask CardsCompliance
Coming soon 2026
The Engineer Behind It

Karlo Šiljevinac

Karlo Šiljevinac
Karlo Šiljevinac
EASA Part-66 · B2 / Cat A
LicenceHR.66.0250
CategoryB2 · Cat A
OrganisationHR.145.0001
BaseZagreb (ZAG)
Experience23+ years
CapabilityAOG · Line · MCC · Docs
Type Ratings
A220A319A320 A321A320neoQ400 ATR 42ATR 72

I have been in aviation maintenance since 2001 — starting on the line at Zagreb before a career that took me through Lufthansa in Germany and a contract at Shannon, Ireland, then back to Croatia Airlines Technical Services. Along the way I built deep competence in AOG situations, line maintenance, and technical documentation across narrow-body jets, regional turboprops, and the newest Airbus generation.

This year I begin a new role in the MCC — the logical next step after two decades on the ramp. Alongside it, I'm building KS AeroDigital: a programme to modernise and digitise aviation documentation at Croatia Airlines, replacing outdated paper procedures and making daily maintenance work faster and safer.

2025—
Now
MCC Engineer + Founder, KS AeroDigital
Croatia Airlines Technical Services · Zagreb
Moving into Maintenance Control Centre operations while building eWorkOrder and a wider digitisation programme for Croatia Airlines' MRO documentation.
2001—
2025
Licensed Certifying Engineer
Croatia Airlines Technical Services · Zagreb
Two decades of line maintenance on A220, A320-family, ATR 42/72, and Q400. EASA Part-145 certifying staff. AOG, transit checks, defect rectification, CRS issuing.
~2010
Contract Line Maintenance Engineer
Lufthansa · Germany
One year within Lufthansa's maintenance organisation — high-volume narrow-body line operations and international regulatory experience.
Contract
Contract Line Maintenance Engineer
Shannon Airport · Ireland
One-month contract engagement at Shannon — Irish and international aviation regulatory environment.
2001
Start of Aviation Career
Line Maintenance · Zagreb Airport
First steps in aircraft maintenance — the beginning of a 23-year career, and the foundation for a mission to digitise it.
Get In Touch

Let's build something

Interested in eWorkOrder for your MRO, looking for a licensed certifying engineer, or want to discuss aviation digitisation? I'd be glad to talk.

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Location
Zagreb, Croatia
🌐
Website
shiljo.com.hr
✉️
Email
karlo@shiljo.com.hr
🔧
EASA Licence
HR.66.0250 · B2 / Cat A
💻
Flagship
eWorkOrder by AeroWorks