/usr/share/eccodes/definitions/metar/ is in libeccodes-data 2.0.2-5.
This file is owned by root:root, with mode 0o755.
..
/usr/share/eccodes/definitions/metar/CCCC.txt
/usr/share/eccodes/definitions/metar/boot.def
/usr/share/eccodes/definitions/metar/boot.flexible.def
/usr/share/eccodes/definitions/metar/cccc.def
/usr/share/eccodes/definitions/metar/clouds.def
/usr/share/eccodes/definitions/metar/clouds.table
/usr/share/eccodes/definitions/metar/clouds_Trend1.def
/usr/share/eccodes/definitions/metar/clouds_Trend2.def
/usr/share/eccodes/definitions/metar/clouds_Trend3.def
/usr/share/eccodes/definitions/metar/clouds_Trend4.def
/usr/share/eccodes/definitions/metar/colour.def
/usr/share/eccodes/definitions/metar/direction.table
/usr/share/eccodes/definitions/metar/horizontalVisibility.def
/usr/share/eccodes/definitions/metar/horizontalVisibility_Trend1.def
/usr/share/eccodes/definitions/metar/horizontalVisibility_Trend2.def
/usr/share/eccodes/definitions/metar/horizontalVisibility_Trend3.def
/usr/share/eccodes/definitions/metar/horizontalVisibility_Trend4.def
/usr/share/eccodes/definitions/metar/missing_field.def
/usr/share/eccodes/definitions/metar/nsd_cccc.txt
/usr/share/eccodes/definitions/metar/present_weather.def
/usr/share/eccodes/definitions/metar/present_weather.list
/usr/share/eccodes/definitions/metar/present_weather_Trend1.def
/usr/share/eccodes/definitions/metar/present_weather_Trend2.def
/usr/share/eccodes/definitions/metar/present_weather_Trend3.def
/usr/share/eccodes/definitions/metar/present_weather_Trend4.def
/usr/share/eccodes/definitions/metar/qnh.def
/usr/share/eccodes/definitions/metar/recent_weather.def
/usr/share/eccodes/definitions/metar/remark.def
/usr/share/eccodes/definitions/metar/runwayDepthOfDeposit.table
/usr/share/eccodes/definitions/metar/runwayFrictionCoefficient.table
/usr/share/eccodes/definitions/metar/runwayState.def
/usr/share/eccodes/definitions/metar/runwayState1.def
/usr/share/eccodes/definitions/metar/runwayState2.def
/usr/share/eccodes/definitions/metar/runwayState3.def
/usr/share/eccodes/definitions/metar/runwayState4.def
/usr/share/eccodes/definitions/metar/runwayStateDeposit.table
/usr/share/eccodes/definitions/metar/runwayStateExtentOfContamination.table
/usr/share/eccodes/definitions/metar/rvr1.def
/usr/share/eccodes/definitions/metar/rvr2.def
/usr/share/eccodes/definitions/metar/rvr3.def
/usr/share/eccodes/definitions/metar/rvr4.def
/usr/share/eccodes/definitions/metar/seaState.table
/usr/share/eccodes/definitions/metar/sea_state.def
/usr/share/eccodes/definitions/metar/stations/
/usr/share/eccodes/definitions/metar/stations/nsd_cccc.txt
/usr/share/eccodes/definitions/metar/temperature.def
/usr/share/eccodes/definitions/metar/temperature.list
/usr/share/eccodes/definitions/metar/trend1.def
/usr/share/eccodes/definitions/metar/trend2.def
/usr/share/eccodes/definitions/metar/trend3.def
/usr/share/eccodes/definitions/metar/trend4.def
/usr/share/eccodes/definitions/metar/weatherCodes-forecasters.txt
/usr/share/eccodes/definitions/metar/weatherCodes-full.txt
/usr/share/eccodes/definitions/metar/weatherCodes-metar-template.txt
/usr/share/eccodes/definitions/metar/weatherCodes-trend-template.txt
/usr/share/eccodes/definitions/metar/wind.def
/usr/share/eccodes/definitions/metar/wind_Trend1.def
/usr/share/eccodes/definitions/metar/wind_Trend2.def
/usr/share/eccodes/definitions/metar/wind_Trend3.def
/usr/share/eccodes/definitions/metar/wind_Trend4.def
/usr/share/eccodes/definitions/metar/wind_shear.def
/usr/share/eccodes/definitions/metar/wrong_delayed.def