Uncontrolled descent during take-off

urn:aero:airm:1.0.0:ContextualModel:ATMBusinessTerms:Uncontrolled_descent_during_take-off

The phase of flight in which any uncontrolled descent occurs after rotation but before the first prescribed power reduction, on reaching 1500 feet (450 metres) or the vfr pattern, whichever comes first.

Source: ICAO