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5.2 G5 Attitude

If the attitude is failed and shows a Red-X condition, follow the troubleshooting steps in the previous

section. If this does not resolve the issue, gather answers to the following questions. This information

may be helpful to the customer, the avionics dealer, or to Garmin Aviation Product Support in

troubleshooting the failure.

1) What specifically was the nature of the failure? Was it a Red-X of only GPS track, only pitch/roll,

or a combination?

2) If there was a Red-X of pitch or roll information, did the unit display an alignment message

(which is indicative of a reset), or a failure message (which is indicative of an invalidated output)?

3) What exactly was the aircraft doing in the two minutes that preceded the failure (taxing on the

ground, flying straight-and-level flight, turning, climbing, etc)? If the problem occurred on the

ground, was it within 100 feet of a hangar using GPS repeaters?

4) How long did the failure last? Was it brief or sustained? If it was repetitive, about how many

times did it happen? Did it happen on more than one day?

5) Was the problem correlated with a specific maneuver or a specific geographic area?

6) Can the problem be repeated reliably?

7) Did the onset of the problem occur shortly after a software upload to the G5?

8) Was there a loss of the GPS position lock?

If the airspeed and/or altitude is failed and shows a Red-X condition:

1) Inspect the pitot/static plumbing integrity.

2) Inspect the pitot/static ports and all associated equipment.

3) If the problem persists, replace the G5 with a known good unit.

A stuck or sticking microSD™ card in the G5 can sometimes be caused by the card thickness variability

(especially if there is more than one label on the card). This is usually caused by the card sticking in the

overlay opening, not by the card sticking to the socket inside the unit. Try another card (without a label if

possible) to confirm the problem. If the second card sticks, the microSD™ socket board inside the unit

may be misaligned with the overlay and the G5 will require repair. Garmin recommends using SanDisk®

brand cards.

Data logging on the G5 may be used to help troubleshoot issues. Operational data is gathered from the

G5 during flight or on ground and is stored in *.csv log files on the microSD™ card (if installed).

Garmin G5 Electronic Flight Instrument Part 23 AML STC Maintenance Manual

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