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UIMC: Unintended flight in IMC - Unintended flight in Instrument Meteorological Conditions (IMC).
- May be used as a precursor to CFIT, LOC-I or LALT.
- Applicable if the pilot was flying according to Visual Flight Rules (VFR), as defined in Annex 2 - Rules of the Air - to the Convention on International Civil Aviation and by any reason found oneself inadvertently in IMC
- Only to be used when loss of visual references is encountered,
- Only to be used if pilot not qualified to fly in IMC and/or aircraft not equipped to fly in IMC