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The loss of control may result from a contaminated runway or taxiway (e.g., rain, snow, ice, slush).
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The loss of control during ground operations can occur as the result of other occurrence categories as well. For example, LOC-G may result from a system/component failure or malfunction to the powerplant (SCF–PP) or non-powerplant (SCF–NP), or from evasive action taken during a Runway Incursion (RI–VAP, or RI–A). For these occurrences, the event is coded under both categories (e.g., LOC–G and SCF–PP, LOC–G and SCF–NP, or LOC–G and RI–VAP or RI–A).
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Do not use when a mechanical failure rendered the aircraft uncontrollable.
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Rotorcraft during sloping ground or moving helideck operations, dynamic rollover and ground resonance events are also included here.
LOSS OF CONTROL – INFLIGHT (LOC-I)
Loss of control inflight is an extreme manifestation of a deviation from intended flightpath. The phrase “loss of control” may cover only some of the cases during which an unintended deviation occurred. It is, therefore, suggested that the occurrence title is reviewed and changed accordingly (for example, Deviation from Intended Flightpath- DEV).
Usage Notes:
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Used only for airborne phases of flight where aircraft control was lost.
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Loss of control can occur during either Instrument Meteorological Conditions (IMC) or Visual Meteorological Conditions (VMC).
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The loss of control during flight may occur as a result of a deliberate maneuver (e.g., stall/spin practice)
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Occurrences involving configuring the aircraft (e.g., flaps, slats, on-board systems, etc.) are included as well as rotorcraft retreating blade stall.
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Stalls are considered loss of control and are included here.
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Rotorcraft occurrences which involve power settling (vortex ring), or settling with power to ground contact are coded here and as ARC if during normal landing or takeoff.
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Rotorcraft External Load operations involving loss of control related to the external load should be coded as LOC-I as well as EXTL.
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Includes Rotorcraft “Loss of Tail Rotor Effectiveness”.
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Includes loss of control during practice or emergency autorotation.
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Includes pilot-induced or assisted oscillations.
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For unmanned aircraft events, includes hazardous outcomes involving deviation from intended flightpath associated with anticipated or unanticipated loss of datalink. However, if loss of datalink is the direct result of a system/component failure or malfunction, code the occurrence as system/component failure or malfunction – non powerplant (SCF-NP) only.
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