Environmental Qualification Forms; Databases; Fault Detection And Exclusion (Fde) - Avidyne IFD540 Installation Manual

Component

1.7 Environmental Qualification Forms

The environmental Qualification for the IFD5XX is listed in Appendix A: Environmental
Qualification Form.
Note: If the IFD5XX has been exposed to extreme cold temperature prior start, it may take a
warm up period to achieve standard performance.

1.8 Databases

The IFD5XX utilizes several databases. All the databases can be loaded on the IFD using the
USB port on the IFD5XX. Reference the IFD5XX Pilot's Guide for updating the IFD5XX
databases.

1.9 Fault Detection and Exclusion (FDE)

FDE software is part of all IFD5XX systems and does not require any installer or pilot action
to operate. This FDE software is running at all times and if it detects an issue, it will alert the
pilot through Caution-Alerting System (CAS) messages.
When the IFD5XX is installed per the directions in this Installation Manual, it complies with
the governing requirements for GPS Primary Means of Navigation in Oceanic and Remote
Airspace (more than 200 nm from the nearest airport), when used with any commercially
available RAIM/FDE Prediction Program. Examples of these prediction programs include
the FAA's raimprediction.net, Fltplan.com, www.sapt.faa.gov, and the Garmin FDE
Prediction Program.
These programs only need to be run under the following scenarios for 14 CFR Parts 91, 121,
125, and 135 operations where the IFD5XX is being used as the primary means of navigation
and:
TSO-C146 compliant antenna equipped aircraft that experience a
WAAS failure or when operating outside of SBAS coverage areas;
Non-TSO-C146 compliant antenna equipped aircraft (e.g. TSO-C129a
only compliant systems) when operating in Oceanic and Remote
airspace, Enroute and Terminal airspace, or during any
LNAV/VNAV, LP, or LPV approach.
Prior to conducting Class II navigation (remote/oceanic), the owner/operator must obtain
operational approval for using the IFD5XX system for long-range navigation from the
appropriate flight standards district office.
600-00299-000
Function
Maintenance Mode
Table 11: DO-178B Software Design Assurance Levels
Page 22 of 198
IFD5XX Installation Manual
DO-178B Design
Assurance Level
D
Revision: 02