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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-C129a to use DO-160D instead of DO-160C for the
environmental standard.
2. Garmin was granted a deviation from TSO-C129a to eliminate the annunciation for pending CDI
scale change 3.0 NM from the FAF.
3. Garmin was granted a deviation from TSO-C129a involving the use of GPS calibrated altitude in
approach mode.
4. Garmin was granted a deviation from TSO-C129a to extend automatic CDI sensitivity changes to
non-approach mode navigation.
5. Garmin was granted a deviation from TSO-C129a to eliminate the requirement in (a)(3)(xi)1.b.ii
to “alert the pilot of the need to manually insert the barometric pressure”.
6. Garmin was granted a deviation from TSO-C129a to modify the requirement (a)(3)(xii)(3) to allow
the approach mode to be deselected by performing a direct-to action on the unit.
7. Garmin was granted a deviation from TSO-C129a to eliminate the requirement in (a)(3)(xv)4.b to
provide a “means to manually identify a satellite that is expected to be unavailable at the destination
(for scheduled maintenance as identified in FAA Notice to Airmen) shall be provided” for the RAIM
prediction process.
TSO-C129a
8. Garmin was granted a deviation from TSO-C129a to change the requirement in paragraph
(a)(7)(ii) to match the WAAS TSO-C145a and DO-229 requirements for Power input testing.
1. Garmin was granted a deviation from ETSO-C129a (ED-72A 3.2.2.1f(3) and 3.2.2.4j(4)) to
eliminate the annunciation for pending CDI scale change 3.0 NM from the FAF.
2. Garmin was granted a deviation from ETSO-C129a (ED-72A 3.2.2..1f(4), 3.2.2.3e(4), and
3.2.2.4j(2)) to eliminate the requirement to “alert the pilot of the need to manually insert the
barometric pressure.
3. Garmin was granted a deviation from ETSO-C129a (ED-72A 3.2.2.4j(8)) to modify the
requirement to allow the approach mode to be deslected by performing a direct-to action on the
unit.
4. Garmin was granted a deviation from ETSO-C129a (ED-72A 3.2.2.3d(2))
ETSO-C129a
5. Garmin was granted a deviation from ETSO-C129a to change the requirement in ED-72A
paragraph 4.16.2.
1. Garmin was granted a deviation from RTCA/DO-229C 2.2.1.1.4.3
2. Garmin was granted a deviation from RTCA/DO-229C 2.2.1.4.9.c
3. Garmin was granted a deviation from RTCA/DO-229C 2.2.4.2.3
4. Garmin was granted a deviation from RTCA/DO-229C 2.2.4.6.4 and 2.2.5.6.4 pertaining to the
low altitude alerting function.
5. Garmin was granted a deviation to not furnish each person receiving a GDU 1XXX copies of the
following data
TSO-C146a 5.c(2)
TSO-C146a 5.a(13)
TSO-C146a 5.a(14)
TSO-C146a
6. Garmin was granted a deviation from RTCA/DO-229C 2.2.1.1.6 to use the terms “ADVISORY”
and “ALERTS” in addition to “MSG” depending upon the installation.
