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TURB: Turbulence encounter - In-flight turbulence encounter
- Includes encounters with turbulence in clear air, mountain wave, mechanical, and/or cloud associated turbulence.
- Wake vortex encounters are also included here.
- Flights into windshear or thunderstorm related turbulence are coded as WSTRW.
- Includes turbulence encountered by aircraft when operating around or at buildings, structures and objects.