Page 1-12
GTN 625/635/650 TSO Installation Manual
Rev. C
190-01004-02
1.5.3
TSO/ETSO Deviations
TSO/ETSO
Deviation
TSO-C34e
1. Garmin was granted a deviation from the TSO to mark product name, part number, serial number and
statement on the unit‟s nameplate label, “TSO-C146c Class 3, See IM for Add‟l Appliance Approvals”, instead of
Product Type, TSO Numbers, Equipment Class, “Dev” (deviation), Environmental Categories, Date of
Manufacture, Weight and Software Part Number.
2. Garmin was granted a deviation from the TSO to use RTCA/DO-160F instead of earlier versions of RTCA/DO-
160 as the standard for Environmental Conditions and Test Procedures of Airborne Equipment.
3. Garmin was granted a deviation from the TSO to use RTCA/DO-178B instead of earlier versions of
RTCA/DO-178 to demonstrate compliance for the verification and validation of the computer software.
TSO-C36e
1. Garmin was granted a deviation from the TSO to mark product name, part number, serial number and
statement on the unit‟s nameplate label, “TSO-C146c Class 3, See IM for Add‟l Appliance Approvals”, instead of
Product Type, TSO Numbers, Equipment Class, “Dev” (deviation), Environmental Categories, Date of
Manufacture, Weight and Software Part Number.
2. Garmin was granted a deviation from the TSO to use RTCA/DO-160F instead of earlier versions of RTCA/DO-
160 as the standard for Environmental Conditions and Test Procedures of Airborne Equipment.
3. Garmin was granted a deviation from TSO to use RTCA/DO-178B instead of earlier versions of RTCA/DO-
178 to demonstrate compliance for the verification and validation of the computer software.
TSO-C40c
1. Garmin was granted a deviation from the TSO to mark product name, part number, serial number and
statement on the unit‟s nameplate label, “TSO-C146c Class 3, See IM for Add‟l Appliance Approvals”, instead of
Product Type, TSO Numbers, Equipment Class, “Dev” (deviation), Environmental Categories, Date of
Manufacture, Weight and Software Part Number.
2. Garmin was granted a deviation from the TSO to use RTCA/DO-160F instead of earlier versions of RTCA/DO-
160 as the standard for Environmental Conditions and Test Procedures of Airborne Equipment.
3. Garmin was granted a deviation from the TSO to use RTCA/DO-178B instead of earlier versions of
RTCA/DO-178 to demonstrate compliance for the verification and validation of the computer software.
ETSO-2C40c
1. Garmin was granted a deviation from the ETSO to have a deflection response of 0.5 to 2.7 seconds.
TSO-C74d
1. Garmin was granted a deviation from the TSO to mark product name, part number, serial number and
statement on the unit‟s nameplate label, “TSO-C146c Class 3, See IM for Add‟l Appliance Approvals”, instead of
Product Type, TSO Numbers, Equipment Class, “Dev” (deviation), Environmental Categories, Date of
Manufacture, Weight and Software Part Number.
TSO-C110a
1. Garmin was granted a deviation from the TSO to mark product name, part number, serial number and
statement on the unit‟s nameplate label, “TSO-C146c Class 3, See IM for Add‟l Appliance Approvals”, instead of
Product Type, TSO Numbers, Equipment Class, “Dev” (deviation), Environmental Categories, Date of
Manufacture, Weight and Software Part Number.
2. Garmin was granted a deviation from the TSO to use RTCA/DO-160F instead of earlier versions of RTCA/DO-
160 as the standard for Environmental Conditions and Test Procedures of Airborne Equipment.
3. Garmin was granted a deviation from the TSO to use RTCA/DO-178B instead of earlier versions of
RTCA/DO-178 to demonstrate compliance for the verification and validation of the computer software.
4. Garmin was granted a deviation from the TSO not to mark the computer software level(s) on the unit.
TSO-C112c
1. Garmin was granted a deviation from the TSO to mark product name, part number, serial number and
statement on the unit‟s nameplate label, “TSO-C146c Class 3, See IM for Add‟l Appliance Approvals”, instead of
Product Type, TSO Numbers, Equipment Class, “Dev” (deviation), Environmental Categories, Date of
Manufacture, Weight and Software Part Number.
TSO-C113
1. Garmin was granted a deviation from the TSO to mark product name, part number, serial number and
statement on the unit‟s nameplate label, “TSO-C146c Class 3, See IM for Add‟l Appliance Approvals”, instead of
Product Type,
TSO Numbers, Equipment Class, “Dev” (deviation), Environmental Categories, Date of
Manufacture, Weight and Software Part Number.
2. Garmin was granted a deviation from the TSO to use RTCA/DO-160F instead of earlier versions of RTCA/DO-
160 as the standard for Environmental Conditions and Test Procedures of Airborne Equipment.
3. Garmin was granted a deviation from the TSO to use RTCA/DO-178B instead of earlier versions of
RTCA/DO-178 to demonstrate compliance for the verification and validation of the computer software.
4. Garmin was granted a deviation from the TSO not to mark the computer software level(s) on the unit.
