
Maintenance, modifications and engineering for business jets – Line & Base Maintenance, AOG support and component services.

ACC COLUMBIA Jet Service GmbH
Hannover · Köln/Bonn · Paphos (CY) · Schwelm · Mitterskirchen · WegbergNew on Amplifa
About ACC Columbia Jet Service
ACC COLUMBIA Jet Service is an internationally operating Maintenance, Repair and Overhaul provider (MRO) for business jets headquartered in Hanover. Founded in 1975, the company employs more than 270 staff and maintains aircraft of the types Airbus, Bombardier, Gulfstream, Embraer and Dassault in line and base maintenance. The service portfolio includes modifications and customized upgrades such as avionics modernization, structural repairs, STC implementations and cabin interior refurbishment, complemented by engineering and certification services under EASA Part 21G and 21J as well as a 24/7 AOG emergency service. In-house sheet metal and design teams plus component and structural support at multiple sites secure the entire value chain. The company is certified under EASA Part 145 and supports aircraft on EASA and FAA registrations worldwide.
- Site
- Hannover
- Processes
- Aircraft Maintenance & Repair (Line & Base Maintenance), Modifications & Custom Upgrades (Avionics Upgrades, Structural Repairs, STC Implementations), Sheet Metal Support / Structural Repairs, Component Support, AOG Support (24/7), Engineering & Certification Services (Part 21G/21J), Interior Refurbishment, Modifications & Custom Upgrades
- Materials
- Line Maintenance, Base Maintenance, Modifications & STC, Engineering & Certification, AOG Support, Interior Refurbishment
- Certificates
- EASA Part 145, EASA Part 21G, EASA Part 21J, EASA Part 21G / 21J
- Founded
- 1975
- Employees
- 270+
- Industries
- Business Aviation (MRO)
- 01
Line Maintenance
- 02
Base Maintenance
- 03
Modifications & Upgrades
- 04
Sheet-Metal & Structural Work
- 05
Component Support
- 06
Engineering & Certification
- 07
AOG Support 24/7
Processes & Services
Line Maintenance
Routine and line maintenance on Airbus, Bombardier, Gulfstream, Embraer and Dassault types.
Base Maintenance
Comprehensive base maintenance including structural repairs in Hanover and Cologne/Bonn.
Modifications & STC
Avionics upgrades, STC implementations and customized cabin outfitting with an in-house sheet metal department.
Engineering & Certification
Approved engineering services under EASA Part 21G and 21J for the preservation of airworthiness.
AOG Support
24/7 on-call team for rapid deployment of technicians and materials.
Interior Refurbishment
Interior outfitting and customization of business aircraft cabins.
Sites

Hannover
DELine & Base Maintenance, Modifications
- Full-service facility with modification expertise

Köln/Bonn
DELine & Base Maintenance, Modifications
- Full-service facility with modification expertise
Paphos
CYLine Maintenance Station
Schwelm
DEComponent & Sheet Metal Support (ACC Columbia Support)
Mitterskirchen
DEComponent & Structural Support
Wegberg
DEComponent & Sheet Metal Support (ACC Columbia Support)
Services



Inside the production



Industries
Processes & technical limits
| Processes | Tolerance | Max. part | Weight | Lot size | Materials |
|---|---|---|---|---|---|
| Aircraft Maintenance & Repair (Line & Base Maintenance)Assembly | – | – | – | – | – |
| Modifications & Custom Upgrades (Avionics Upgrades, Structural Repairs, STC Implementations)Assembly | – | – | – | – | – |
| Sheet Metal Support / Structural RepairsForming | – | – | – | – | – |
| Component SupportAssembly | – | – | – | – | – |
| AOG Support (24/7)Assembly | – | – | – | – | – |
| Engineering & Certification Services (Part 21G/21J)Engineering | – | – | – | – | – |
| Interior RefurbishmentAssembly | – | – | – | – | – |
6 Anlagen & Maschinen
| Machine | Manufacturer / model | Quantity | Working area | Year built | Site |
|---|---|---|---|---|---|
| Maintenance and Modification Facility (Full-Service) | – | – | – | – | Hanover, Germany |
| Maintenance and Modification Facility (Full-Service) | – | – | – | – | Cologne/Bonn, Germany |
| Line Maintenance Station | – | – | – | – | Paphos, Cyprus |
| Component & Sheet Metal Support Facility | – | – | – | – | Schwelm, Germany |
| Component & Structural Support Facility | – | – | – | – | Mitterskirchen, Germany |
| Component & Sheet Metal Support Facility | – | – | – | – | Wegberg, Germany |
Additional services
Reference customers
Certifications & Approvals
The company is certified under EASA Part 145, Part 21G and Part 21J and supports aircraft on EASA and FAA registrations worldwide.
| Evidence | Hannover | Köln/Bonn | Paphos | Schwelm | Mitterskirchen | Wegberg |
|---|---|---|---|---|---|---|
| EASA Part 145 | ||||||
| EASA Part 21G / 21J |
History
- 1975
Founded; leading global MRO provider for business aviation
- 2025
Integration of Starlink Aviation Broadband on the Legacy 650 – among the first worldwide
- 2026
Expansion of the strategic partnership with GE Aerospace
- 2026
IT security incident (unauthorized system access and data exfiltration) since 09.09.2026 under investigation