The installation manual dedicates a full chapter to pre-installation planning. Overlooking these steps is the number one cause of certification delays.
The official (P/N 190-00301-00, revision AD or later) is not included in the shipping box with a new unit. It must be obtained through:
Disclaimer: This article is for informational and training purposes only. Always refer to the latest official Garmin GDU 620 Installation Manual (190-00301-00) and applicable airworthiness regulations before performing any aircraft modification. gdu 620 installation manual
The required panel cutout is exactly 10.07 inches wide by 7.91 inches high. The manual includes a 1:1 scale template. Do not assume the cutout is the same as older GDU 620 variants (e.g., GDU 620A). The rear connector depth changed slightly with -20 series units.
Searching for the official GDU 620 Installation Manual (Garmin part number 190-00601-04 The installation manual dedicates a full chapter to
Later GDU 620 -20 and -21 models support composite video input from an optional TCAS or EVS camera.
Before closing the panel, the requires a systematic verification. It must be obtained through: Disclaimer: This article
For the latest revisions, always check Garmin’s website or contact Garmin Aviation Product Support before cutting any panel holes.
