500W Series Installation Manual
Page 3-13
190-00357-02
Rev. D
AFMS Section 4.3 Autopilot Coupling Limitations
This section of the AFMS contains four possible limitations:
[1] This installation prompts the pilot and requires the pilot to enable the A/P outputs just prior to
engaging the autopilot in APR mode.
[2] This installation supports a seamless transition from digital (GPSS) to analog guidance for the
autopilot. To capture the vertical guidance, the pilot may engage the autopilot in APR mode at
any time when the GPS Glide Slope (VDI) becomes valid (displayed without a FLAG).
[3] This installation interfaces to the autopilot in analog mode only. To capture the vertical guidance,
the pilot may engage the autopilot in APR mode at any time when the GPS Glide Slope (VDI)
becomes valid.
[4] The autopilot does not support any vertical capture or tracking in this installation.
For all autopilots listed in the 400W/500W Series AML STC, the appropriate limitations for that
autopilot are identified in the preceding table. The corresponding limitation should be checked in the
AFMS.
3.13.2 Autopilot Not Listed in 400W/500W Series AML STC
If an installation has an autopilot interface that is not listed in the 400W/500W Series AML STC,
additional FAA approval is required. However, the AFMS provided with the AML STC should still be
used, with the appropriate limitations specified as described below.
AFMS Section 2.8 Autopilot Coupling Limitations
This section of the AFMS contains two possible limitations:
[a] No limitations for autopilot coupling.
[b] Lateral GPS coupling (LNAV only). For 430W/530W units: The GS of an ILS (VLOC) may be
coupled to the autopilot without any limitations.
For all autopilots that are not listed in the 400W/500W Series AML STC, limitation [b] applies.
Additional FAA approval from the Aircraft Certification Office (ACO) is required for a particular
installation to remove the vertical GPS coupling limitations.
AFMS Section 4.3 Autopilot Coupling Limitations
This section of the AFMS contains four possible limitations:
[1] This installation prompts the pilot and requires the pilot to enable the A/P outputs just prior to
engaging the autopilot in APR mode.
[2] This installation supports a seamless transition from digital (GPSS) to analog guidance for the
autopilot. To capture the vertical guidance, the pilot may engage the autopilot in APR mode at
any time when the GPS Glide Slope (VDI) becomes valid (displayed without a FLAG).
[3] This installation interfaces to the autopilot in analog mode only. To capture the vertical guidance,
the pilot may engage the autopilot in APR mode at any time when the GPS Glide Slope (VDI)
becomes valid.
[4] The autopilot does not support any vertical capture or tracking in this installation.
Summary of Contents for GNS 530W
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