Installation Instructions

GTN 6XX/7XX AML STC Installation Manual 190-01007-A3
Page C-2 Rev. 4
C.2 Air Data Computer
Air data computers not listed below can still be approved under this GTN AML STC if all of the
following conditions are met:
The air data computer provides the following labels:
203 – Pressure Altitude
204 – Barometric-Corrected Altitude
210 – True Airspeed
• The interface check for the altitude encoder described in Section 5.6.10 must be successfully
completed.
• The installation of the air data computer was previously FAA-approved.
• The air data computer is TSO approved.
• The connections to the GTN must utilize shielding wiring of the type specified in this manual.
Shields must be terminated on the GTN side to connector shield block ground and on the Air
Data Computer side in accordance with the Air Data Computer installation data. If the Air Data
Computer installation data does not specify a shielding method then terminate the shield at the
Air Data Computer using the guidelines provided in Section 2.4.11.4.
If these conditions are met the interface can be approved under this GTN AML STC.
Table C-2. Compatible Air Data Computer Models
Mfg Model Data Format Configuration
B & D 90004-003 ARINC 429 Airdata, low speed
Honeywell (Bendix/King) KDC 281 ARINC 429 Airdata, low speed
KDC 481 ARINC 429 Airdata, low speed
Insight TAS 1000 RS-232 FADC Format 1