Expertise in the modification & repair of airplanes & helicopters

The Design Organisation (DO) of Assystem in Germany has a wide range of aviation right privileges. Several hundred projects were performed on various aircraft samples from manufacturers such as Airbus, ATR, Augusta, BAe, Bell, Boeing, Bombardier, Cessna, Embraer, Eurocopter and Learjet.


DOA: EASA 21J.657
Categories: CS 23, 25, 27, 29 (p)
Development Part 21
Supplemental Type Certificates STC
Repair, classification major / minor
Changes of and supplements to the aircraft manual

Products & solutions

Crew rest: Crew rest seat modifications for Class 3 Crew Rest. Read more here.
ELA: Electrical Load Analyses for individual aircraft or whole fleets
CLM: Cabin Layout Management

Would you like to make changes to your aircraft?

We will gladly provide you with an offer for engineering and approval.

Please contact our Design Organisation team in Hamburg. Ideally with the following information:

  • Aircraft manufacturer and type
  • Registration (tail sign)
  • Aircraft serial number

When available, in addition to this information:

  • Pre-mod documents
  • Post-mod and specifications for the change

Your contact person:
Mr Joachim Lau
Tel: +49 40 743-65407

Assysten Germany - A new path to growth