We know your challenges!

The bar is high: standards regarding security, complexity of projects across continents, price pressure, ..

Stay successful and flexible: We can guarantee you an uncomplicated, fast and cost-conscious handling of your projects. Many years of engineering experience and numerous successful projects for well-known OEMs and MROs form the basis for this.

The engineering team consists of excellently qualified technical specialists who have long been networked in the aerospace industry.

Due to the close cooperation with partners, this knowledge and their network is also available to you! This means that, in addition to the technically necessary expertise, above all project management and certification of our solutions are available.

This enables us to also offer "turnkey" solutions in the field of aircraft cabin conversions, including project management.

Cabin Conversions

From development to integration on the aircraft; including supplier management and project management – you will have only one point of contact to receive your ‘turnkey’ engineering solution.

From minor changes to full cabin conversions – QRelation Engineering offers the following:

  • Cost Estimation on the Aircraft (Initial Survey)
  • Preparation of Specifications
  • Feasibility Studies, Installation and Assembly Studies, Damage Tolerance Analysis
  • Industrial Design and Scope of Work Definition
  • Calculation and Design of Cabin Components and Systems
  • System Integration
  • Qualification and Technical Documentation
  • Project- and Supplier Management
  • Layover Support during conversion

FAI Services

Get the support you need for FAI Services in accordance with the requirements of EN 9100 / EN 9102 from external resources.

Our aircraft construction experts implement your tasks quickly, effectively and with high quality.

The processing by catalogue service (items at fixed prices) allows you very flexible resource planning with full cost transparency. Delivery contents can be continuously adapted if required by weekly, written delivery.

Our service solution

  • Conception of test planning and documents
  • Execution of First Article Inspections on aviation-specific components and preparation of the required documentation
  • Performance of technical tests such as dimensional measurement paths
  • Functional material and installation tests
  • Initiation of specific tests, e.g. strength tests, metallography tests, chemical tests
  • Checking and verification of the evidence documentation
  • Release or blocking of products if required by the FAI report (blocked stock management)
  • Management: controlling, tracking, reporting, analyzing, deriving and optimizing activities
  • Consulting and optimization of internal processes

Reengineering & Equipment Development

Reverse engineering, from the digitization and scanning of parts to the creation of 3D models and the creation of blueprints and drawings.

  1. Real product Reengineering basis
  2. 3D modelling in CAD or by scan file
  3. 2D drawing checklist, inspection plan

Range of Services – from the idea to series production

Development & Design

Concept & Analysis

  • Specifications
  • Regulation analysis
  • Inspection of installation space


  • Statics / Dynamics
  • Strength / Vibration
  • Flow


  • Mechanical systems
  • 3D CAD modeling
  • Drafting
  • Reverse engineering

Production Monitoring

  • Inspection planning
  • Testing
  • Commissioning
  • First Article Inspection

Project Management

Project organization and control at the operational level

  • Sales and bid support
  • Project controlling (time / costs / quality)
  • Change & claim management
  • Interface Management
  • Project documentation
  • Quality assurance
  • Risk and FMEA management
  • Qualification and employee training

Cabin Conversion

First Article Inspection (German only)

Find more information about our services in the field of aviation: Click on the picture to open the PDF.