AS Copied from the CANADIAN AIM
“reportable aviation incident” means an incident resulting
directly from the operation of an airplane having a maximum
certificated takeoff weight greater than 5 700 kg, or from
the operation of a rotorcraft having a maximum certificated
takeoff weight greater than 2 250 kg, where
(a) an engine fails or is shut down as a precautionary
measure;
(b) a transmission gearbox malfunction occurs;
(c) smoke or fire occurs;
(d) difficulties in controlling the aircraft are encountered
owing to any aircraft system malfunction, weather
phenomena, wake turbulence, uncontrolled vibrations or
operations outside the flight envelope;
(e) the aircraft fails to remain within the intended landing
or takeoff area, lands with all or part of the landing gear
retracted or drags a wing tip, an engine pod or any other
part of the aircraft;
(f) any crew member whose duties are directly related to the
safe operation of the aircraft is unable to perform the crew
member’s duties as a result of a physical incapacitation
that poses a threat to the safety of any person, property or
the environment;
(g) depressurization occurs that necessitates an
emergency descent;
(h) a fuel shortage occurs that necessitates a diversion or
requires approach and landing priority at the destination
of the aircraft;
(i) the aircraft is refuelled with the incorrect type of fuel or
contaminated fuel;
(j) a collision, a risk of collision or a loss of
separation occurs;
(k) a crew member declares an emergency or indicates any
degree of emergency that requires priority handling by an
air traffic control unit or the standing by of emergency
response services;
(l) a slung load is released unintentionally or as a precautionary
or emergency measure from the aircraft; or
(m) any dangerous goods are released in or from the aircraft.
Our Company "reportable incident" list is even longer.