Analysis of operational parameters of the Cirrus SR22T aircraft for identification of deviations from standard operating procedures

Safety of air operations remains critically important in all branches of aviation. Both the maintenance and operating procedures standards are based on the identification of threats and proven strategies aimed at their elimination. Deviations from standard procedures lead to aviation accidents; therefore flight data monitoring (FDM) is a process required by aviation regulations worldwide from air carriers. Data collected during flights are analyzed to detect potentially dangerous crew actions. FDM is considered to be one of the critical success factors in the significant reduction of accidents in airline operations in recent years. However, according to the 27th Joseph T. Nail Report, accident rates in general aviation (GA) remain significant and as high as 4.87 per 100,000 flight hours in 2015, despite the reduction of even higher values observed in the first decade of the 21st century. For this reason, the GA industry and government bodies push new safety initiatives, among which the introduction of FDM to private and non-scheduled commercial operations seems to be promising but challenging. On a favorable side standardization in GA is poor, which creates vast space for improvement. On a negative side, GA aircraft data recording capabilities are limited regarding the number of parameters and the frequency of records. Research work is required to understand better how standard operating procedures (SOP) and FDM based on a limited set of data may lead to safety improvements for a specific aircraft type. Such an initial work was carried out for the Cirrus SR22T aircraft. During the test flight, several intentional deviations from factory SOP were executed while data derived from the Cirrus Perspective by Garmin avionics suite were recorded. The recorded time series of selected operating parameters were combined and analyzed to define potential FDM events for the Cirrus SR22T. The presentation covers a few theoretical concepts, as a basis for FDM that can be applied to GA technically advanced aircraft.


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  • Accession Number: 01715739
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Aug 2 2019 3:26PM