Garmin GPS 400W, Installation Manual

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GNS 400W Series Installation Manual Page 5-45
190-00356-08 Rev. G
5.6.4 ILS Flight Check (GNS 430W)
1. Tune an ILS at the local airport.
2. Verify the audio ident and audio quality and verify that no objectionable electrical interference
such as magneto noise is present.
3. Verify the Morse code decoder IDs the station (95% probability).
4. Fly the approach.
5. Verify NAV flag, GS flag, and CDI and VDI are operational.
5.6.5 Autopilot Flight Check
1. Enter and activate a flight plan on the 400W Series unit. For the 430W, ensure that GPS is
selected on the CDI. Engage the autopilot in the GPSS mode. Verify that the autopilot flies the
course.
2. Disengage the autopilot and fly off course. Re-engage the autopilot (in GPSS mode) and verify
that it correctly intercepts the course and continues to fly it.
3. Turn off the autopilot GPSS but leave the autopilot engaged in NAV mode. Verify that it
maintains the current course.
4. (430W Only): Reselect the GPSS mode on the autopilot. Press the CDI key to select VLOC on
the 430W. Verify that the GPSS mode disengages.
5.7 Database Check
Check the aviation database to ensure it is current. The database information is displayed during the unit
display start-up sequence. To check the database:
1. Turn off the 400W Series units and then turn it on. The 400W Series unit will go through its
normal start-up sequence.
2. Wait for the Aviation Database page to be displayed.
3. Verify that the expiration date displayed has not passed.
If the database has expired, then remove and replace the aviation database card as described in the
following section, and see Section 1.7.1.
5.7.1 Data Card Replacement
CAUTION
Handle the data cards carefully. Do not touch the connector edge of the data card.
To replace the data card do the following:
1. Ensure that the 400W Series unit is turned off.
2. Remove the data card by lifting the tab and pull card to extract from the unit.
3. With the label facing left, insert the new data cards by pushing the card straight into the slot and
press until it is inserted fully. The aviation database card inserts into the left slot. The
terrain/obstacle database card inserts into the right slot.