Service and Repairs

When sending your unit to us for service, please make sure to use the correct address (Garrecht or Butterfly) always fill out our service form below.

Contact Us

  • eMail:
  • Phone: +49 6224 98 96 999
  • Fax: +49 6224 82 83 877

Mo-Fr, 07:00 to 18:00CET

Shop Accessories

  • Shop online: AIR Store
  • via eMail:
  • +49 6224 98 96 999

Volkslogger Date Problem

GNSS Flightrecorder equipped with the Garmin GPS 25 Receiver are affected by the "1024 week roll over issue". This will result in a wrong flight date recorded in the IGC file. Volskloggers are affected as well. We provide a repair solution, more details can be found below.

Knowledge Base

Our knowledge-base has answers to the most common questions.

Open our Knowledge-Base

Updates and Documentation

Garrecht VT-01

VT-01 Mode-S XPDR



A new EASA Minor Change Approval specifically issued for TRX devices is available. The new approval does no longer limit installation to VFR certified aircraft. Installation with connection to certified systems and the use of exterior antennas is now possible as well.

Review list of approved models    Order Approval Now

Discontinued Products

These products have reached their end of life years ago. We can unfortunately only provide limited support. Repairs are still performed, replacement part availability provided.

Butterfly Display ZERO

Butterfly Display ZERO