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G900X/G950 Installation and Maintenance Manual – GDU 1040
Revision D
190-00719-00
TSO/ETSO Deviations, continued
TSO/ETSO Deviation
1. Garmin was granted a deviation from TSO-C6d to use RTCA DO-160D instead of RTCA DO-
160B as the standard for Environmental Conditions and Test Procedures for Airborne Equipment.
2. Garmin was granted a deviation from TSO-C6d to use RTCA DO-178B instead of RTCA DO-
178A to demonstrate compliance for the verification and validation of the computer software.
3. Garmin was granted a deviation from TSO-C6d to use SAE AS 8013A instead of SAE AS 8013
as the Minimum Performance Standard.
TSO-C6d
4. Garmin was granted a deviation from TSO-C6d to modify the requirement 3.10.2 in SAE AS
8013A that requires “The indicating means to be visible from all points on a surface defined as
making an angle of 30 degrees with the perpendicular.”
1. Garmin was granted a deviation from ETSO-C6d to use SAE AS 8013A instead of SAE AS 8013
as the Minimum Performance Standard.
ETSO-C6d
2. Garmin was granted a deviation from ETSO-C6d to modify the requirement 3.10.2 in SAE AS
8013A.
1. Garmin was granted a deviation from TSO-C8d to use RTCA DO-160D instead of RTCA DO-
160C as the standard for Environmental Conditions and Test Procedures for Airborne Equipment.
2. Garmin was granted a deviation from TSO-C8d to use RTCA DO-178B instead of RTCA DO-
178A to demonstrate compliance for the verification and validation of the computer software.
3. Garmin was granted a deviation from TSO-C8d to use SAE AS 8016A instead of SAE AS 8016
as the Minimum Performance Standard
TSO-C8d
4. Garmin was granted a deviation from TSO-C8d to modify the requirement 3.2.4 in SAE AS
8016A.
1. Garmin was granted a deviation from ETSO-C8d to use SAE AS 8016A instead of SAE AS 8016
as the Minimum Performance Standard.
ETSO-C8d
2. Garmin was granted a deviation from ETSO-C8d to modify the requirement 3.2.4 in SAE AS
8016A.
1. Garmin was granted a deviation from AS-402B paragraph 4.4.1 to limit autopilot engagement to
attitudes considered safe for the certified aircraft.
2. Garmin was granted a deviation from TSO-C9c to use SAE AS-402B instead of AS-402A.
3. Garmin was granted a deviation from TSO-C9c to use DO-160D instead of specified
environmental tests.
4. Garmin was granted a deviation from TSO-C9c subpart A (c), which requires marking the weight
of the unit on the unit.
TSO-C9c
5. Garmin was granted a deviation from AS402B paragraph 4.3.2 to not provide servo effort
indications when the automatic pilot is not engaged.
1. Garmin was granted a deviation from AS-402B paragraph 4.4.1 to limit autopilot engagement to
attitudes considered safe for the certified aircraft.
2. Garmin was granted a deviation from ETSO-C9c to use SAE AS-402B instead of AS-402A.
3. Garmin was granted a deviation from ETSO-C9c to use DO-160D instead of specified
environmental tests.
ETSO-C9c
4. Garmin was granted a deviation from AS402B paragraph 4.3.2 to not provide servo effort
indications when the automatic pilot is not engaged.
