Windows 8.1 or win10, XPlane 11.53: I get a “nav data out of date” message on the FMC (B737-800X), even though the latest nav data update is in the XPLane/custom data folder, as required. On my FMS screen it shows version 2103 as expected, but the adjacent effective dates are always one month beh…

Ian, You got it! The XP standard B737-800 FMS shows correct NAV DATA dates. I downloaded and installed the latest Zibo 737-800X, and now the Zibo B737-800X FMC shows correct dates and no out-of-date message. Thanks for you patience with me on this. Don [Ian] | Ian Support Manager & Moderator Apr…

Airac data number and effective dates do not match in fmc

Navigation Data General non MSFS data

Ian April 2, 2021, 10:44pm 2

Hi…,

Welcome

Please see FAQ - Nav Data Out Of Date

Please post following screenshots using Guide to posting Screenshots

Cheers
Ian

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Airac data number and effective dates do not match in fmc

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