G3X/G3X Touch systems installed in experimental aircraft with Kavlico pressure sensor part numbers P4055-15G-E4A, P4055-50G-E4A, or P4055-150G-E4A are affected.
Mandatory: Compliance with this service bulletin is mandatory within 30 calendar days of the published date of this bulletin, or at the next scheduled service interval; whichever occurs first. After 30 days, it must be completed before the next flight.
Garmin has received reports that a small number of Kavlico manufactured fluid pressure sensors have leaked.
This service bulletin includes instructions for inspection of existing installations and provides improved guidance to prevent affected pressure sensor leaks (as described in the G3X/G3X Touch Installation Manual 190-01115-01, revision AM or later).