# Aircraft Substitutions

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Our flight modules are built in a way substituting aircraft isn’t necessary. Therefore, substitutions are not accepted.  
If a PIREP log documents a *different* aircraft than what was bidded, it will be **Rejected**.

<span style="color: #ff0000;">**No exceptions**</span>.

<p class="callout info">FlightTrackerXP and smartCARS 3 provides the ability for us to see what aircraft and ICAO you used in the simulator and cross reference it with our liveries and bids</p>

**How do I know this is wrong?**

Open the PIREP report up.

Click on the [![image-1760462219890.png](https://docs.walkerair.us/uploads/images/gallery/2025-10/scaled-1680-/image-1760462219890.png)](https://docs.walkerair.us/uploads/images/gallery/2025-10/image-1760462219890.png) to open the Information panel.

Look at the Aircraft; this is the *aircraft* that was on your **bid**, it is not the plane you flew in the simulator.

[![image-1760462274719.png](https://docs.walkerair.us/uploads/images/gallery/2025-10/scaled-1680-/image-1760462274719.png)](https://docs.walkerair.us/uploads/images/gallery/2025-10/image-1760462274719.png)

Click on the [![image-1760462294732.png](https://docs.walkerair.us/uploads/images/gallery/2025-10/scaled-1680-/image-1760462294732.png)](https://docs.walkerair.us/uploads/images/gallery/2025-10/image-1760462294732.png) to open your ACARS log.

Look at the 1st few lines and you will see the log entries from smartCARS 3. *This is the information that your simulator sends to the ACARS application. If this is not correct, then you need to contact TFDi and raise a ticket. We have no control over what your computer sends to the application.*

[![image-1760462381468.png](https://docs.walkerair.us/uploads/images/gallery/2025-10/scaled-1680-/image-1760462381468.png)](https://docs.walkerair.us/uploads/images/gallery/2025-10/image-1760462381468.png)

If these 2 things do not match, your flight will get rejected. Your aircraft must match the one you bid on.