A method for real-time or quasi-real-time detection of an impendent situation of an operating aircraft, the method comprising: Receiving real-time or quasi-real-time data corresponding to a plurality of parameters related to an operation of the aircraft; determining if any of the plurality of parameters is at or beyond at least a first respective threshold by comparing the plurality of parameters with the first respective thresholds; if at least one of the parameters is an outlier parameter at or beyond its first respective threshold : identifying at least one other of the plurality of parameters associated to the at least one outlier parameter, the at least one other parameter being selected based on a predetermined combination of parameters representative of an adverse condition, comparing the associated parameters with a stored data combination threshold specific to the associated parameters, and outputting a signal indicative of an impending situation if the associated parameters are on or beyond the data combination threshold, and characterised by determining if any of the plurality of parameters is at or beyond at least a second respective threshold beyond the first threshold by comparing the plurality of parameters with the second respective threshold; if at least one of the parameters is at or beyond the second respective threshold : outputting a signal indicative of an impending situation to alert the user of the impending situation . Receiving real-time or quasi-real-time data corresponding to a plurality of parameters related to an operation of the aircraft; determining if any of the plurality of parameters is at or beyond at least a first respective threshold by comparing the plurality of parameters with the first respective thresholds; if at least one of the parameters is an outlier parameter at or beyond its first respective threshold : identifying at least one other of the plurality of parameters associated to the at least one outlier parameter, the at least one other parameter being selected based on a predetermined combination of parameters representative of an adverse condition, comparing the associated parameters with a stored data combination threshold specific to the associated parameters, and outputting a signal indicative of an impending situation if the associated parameters are on or beyond the data combination threshold, and characterised by identifying at least one other of the plurality of parameters associated to the at least one outlier parameter, the at least one other parameter being selected based on a predetermined combination of parameters representative of an adverse condition, comparing the associated parameters with a stored data combination threshold specific to the associated parameters, and outputting a signal indicative of an impending situation if the associated parameters are on or beyond the data combination threshold, and characterised by determining if any of the plurality of parameters is at or beyond at least a second respective threshold beyond the first threshold by comparing the plurality of parameters with the second respective threshold; if at least one of the parameters is at or beyond the second respective threshold : outputting a signal indicative of an impending situation to alert the user of the impending situation . <EOS>