Support enquiry | TQ-General-Aviation Our services for you

You have questions or need help with KRT2 or KTX2?
Here you will find the contact to our service team as well as our RMA Return Form.

Direct service contact

We are glad to assist you personally with advice and assistance:


Adress: Mühlstraße 2, 82229 Seefeld, Deutschland

Phone: +49 (0)8153-9308-661

Fax: +49 (0)8153-9308-7-661



In the context of support requests, you have taken note of our data privacy statement and agree to the use of your personal data within the scope of this declaration.

Support Service - RMA Form

This easy is your shipment:

1. Complete the online form below and click “Submit”.
2. You will receive an e-mail with your details from us.
3. Please print them out and enclose the printout of your shipment!
4. You will receive a separate e-mail from us with a UPS shipping voucher if your device is still under warranty.
5. Send the device and the printout to the address given here. Please select the address of your continent. (Europe or US).


TQ-Systems GmbH
Service General Aviation
Mühlstraße 2
82229 Seefeld


TQ-Systems USA Inc. 
Aviation Dept.
424 Network Station,
Chesapeake, Virginia 23320,
United States


Please note:

The warranty period expires prematurely, as far as the purchaser undertakes unauthorized repair attempts or other changes to the device or the error is due to a faulty operation or installation by the purchaser. In this case, for the review of the device € 165.00 plus 19% VAT will be charged. This service charge also applies to devices that are outside the warranty period. 


TQ Aviation offers further services for the KRT2 and the KTX2.

New display or a new form 1? We love to help you.

Price list

FAQ TQ-Aviation

Here you will find all frequently asked questions about our products and services.


Downloads TQ-General-Aviation

Documents accompanying our products and services such as manuals and data sheets for you to download.