PART 21 Design

PART 21 Design

We provide approval and certification for minor changes & major modifications to:

  • CS 25 and 23: Large and small aeroplanes
  • CS 29 and 27: Large and small rotorcraft

Our main technical fields of expertise are:

  • Avionics
  • Installation of avionics equipment
  • Electrical systems
  • Cabin interiors

PART 21

Our team is composed of experienced aircraft design engineers, compliance verification engineers and project leaders.

Project examples:

  • BN-2 Semi-glass cockpit upgrade
  • L410 TCAS & EGPWS installation
  • A319 IFE USB PWR
  • B206 Special Mission equipment installation
  • And many more

In case of your interest about our offered services or with any question, please do not hesitate to contact us at email: info@ceslet.cz or fill up the form and we will get back to you in no time.