---
title: Preparing for an IRIS Health Check
description: Prepare for an IRIS health check and troubleshoot data issues by checking dialer software, laptop setup, and re-flying if needed.
---

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October 15, 2026

# Preparing for an IRIS Health Check

## What is an IRIS health check?

An IRIS health check is a scheduled system check for an aircraft’s IRIS system. A health check can be completed successfully, and follow-up checks may be scheduled as needed.

## How do you prepare for an IRIS health check?

Before the health check, make sure the aircraft dialer is on software version 03 or newer. If it is not, order a dialer from parts with version 03 software. The version is shown on screen during bootup.

Also prepare a laptop with internet access by connecting it to base Wi‑Fi or a hotspot, and plug in the ethernet connection.

## What should be done after troubleshooting a data issue?

If AHARS and GPS data appear after changing the ARINC 429-B output channel speed from slow to fast, the aircraft should be flown again and the uploaded data reviewed.

## When is additional review needed?

If the data concern remains after troubleshooting, the aircraft needs to be flown again and uploaded so the system can be reviewed.

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