Side-by-side
Design, Engineering & Innovation (DEI) Services vs Line Maintenance Services
Spec comparison for two products on Aviation Souk. Both compete in Aircraft MRO / Line Maintenance.

Aircraft MRO / Line Maintenance
Design, Engineering & Innovation (DEI) Services
by Etihad Engineering
EASA Part 21J- and Part 21G-approved design, certification, and in-house production for major aircraft cabin modifications and additive-manufactured parts.

Aircraft MRO / Line Maintenance
Line Maintenance Services
by Turkish Technic
Line maintenance across 66 stations on four continents — transit checks, overnight A-checks, defect rectification, and 24/7 AOG call-out for 27 aircraft types.
| Cost of ownership | Design, Engineering & Innovation (DEI) Services | Line Maintenance Services |
|---|---|---|
| Price tier | — | — |
| Lead time (weeks) | ?–? | ?–? |
| Delivery | — | — |
| Install | — | — |
| GCC airports deployed | 0 | 0 |
| Certifications | 0 | 0 |
Specs
Technical specifications.
| Spec | Design, Engineering & Innovation (DEI) Services | Line Maintenance Services |
|---|---|---|
| Design authority | EASA Part 21J DOA (extended scope) + GCAA Part 21J DOA | — |
| Production authority | EASA Part 21G POA — first in Middle East, first non-European MRO globally | — |
| Modification scope | Minor and Major changes including full STCs | — |
| Additive manufacturing approval | EASA-approved powder-bed fusion (EOS technology) | — |
| Part types produced | Metallic, plastic, composite, soft furnishings, decals, placards | — |
| Aircraft scope | All large commercial and VIP aircraft types | — |
| Notable first | First airline MRO globally to design, certify, and fly 3D-printed cabin parts under EASA | — |
| Domestic stations (Turkey) | — | 32 |
| International stations | — | 34 |
| Total stations | — | 66 |
| Aircraft types supported | — | 27 |
| Airbus types | — | A320 family (incl. neo), A330, A340, A350, A380 |
| Boeing types | — | 737 NG/MAX, 747, 757, 767, 777, 787 |
| Regulatory memberships | — | IATP, ELMO |
| Regulatory approvals | — | EASA Part 145, FAA, SHGM + local authorities |
| AOG availability | — | 24/7 |
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