Continued Airworthiness - Garmin GTX 3x5 Series Installation Manual

7 CONTINUED AIRWORTHINESS

Other than for regulatory periodic functional checks, maintenance of the GTX 3x5 is "on condition" only.
Periodic maintenance of the GTX 3x5 is not required.
190-01499-02 GTX 3x5 TSO Installation Manual
Rev. 1 Page 7-1