# Navigraph Airac Downgrade **URL:** \ **Category:** General MSFS Data\ **Created:** [April 25, 2025, 5:22am UTC](https://forum.navigraph.com/t/navigraph-airac-downgrade/19425 "2025-04-25T05:22:29Z")\ **Posts on this page:** 3\ **Page:** 1
**Author:** ![youngcha](https://avatars.discourse-cdn.com/v4/letter/y/85e7bf/32.png) [@youngcha](https://forum.navigraph.com/u/youngcha)\ **Post date:** [April 25, 2025, 5:22am UTC](https://forum.navigraph.com/t/navigraph-airac-downgrade/19425/1 "2025-04-25T05:22:30Z")
I recently updated my Airac data to 2504 rev.1 and 2504 rev.2 versions, and since I updated it, CTD is occurring in the approach of all planes, and of course, it may not be an Airac problem, but the only thing I did was update Airac. I’m using the msfs2024 platform, and could you please provide me with the previous (2503) version? ---
**Author:** ![NAVData](https://dub1.discourse-cdn.com/flex013/user_avatar/forum.navigraph.com/navdata/32/30549_2.png) [@NAVData](https://forum.navigraph.com/u/NAVData)\ **Post date:** [April 25, 2025, 6:40am UTC](https://forum.navigraph.com/t/navigraph-airac-downgrade/19425/2 "2025-04-25T06:40:36Z")
Hi, I’m sorry, but we don´t offer any outdated cycles, and I´m sure that this would not solve your permanent CTDs during all approaches with all aircraft. Normally, any other package (or possible driver) that is not 100% compatible is the root cause of such CTDs. Why do you think that using an outdated cycle will solve your CTDs? Cheers, Richard ---
**Author:** ![system](https://europe1.discourse-cdn.com/flex013/uploads/navigraph1/original/1X/4cc83e90d70ab312b1bd2d7527bddad309607265.png) [@system](https://forum.navigraph.com/u/system)\ **Post date:** [May 2, 2025, 6:41am UTC](https://forum.navigraph.com/t/navigraph-airac-downgrade/19425/3 "2025-05-02T06:41:29Z")
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