'Big data' trend analysis?

[noughtsnones]

Mark,
Maintenance data analysis has been going on since … in the late 1980's my employer started using the automatically downloaded digital maintenance data in combination with manually downloaded data recorder files in the analysis of (what we concluded to be) ice crystal effects.


Real-time controller data files (from sub-assembly and flight test programmes) are occasionally cut down to parameters of interest to validate completely new controller algorithms and optimise associated data variations.


There's clearly a great deal of money associated in after market services … here is a spread of reading material: -


Health and Usage Monitoring Systems conference


Airbus AIRMAN


Boeing AHM


General Electric Company - Integrated Vehicle Health Management


Honeywell - Trend Monitoring


Pratt & Whitney - Engine Management Programs



Rolls-Royce - Engine Health Management


The provision of operational data recorder files is a problematic one, requiring legal protections; data leakage in view of flight crew rights, across the commercial (let alone public) domain is simply not tolerable. See

The AAIB investigation report for G-YMMM (section 1.19) describes some data mining, and states “The provision of QAR data is a sensitive one and this development meant that airlines were able to provide a summary of results, rather than the QAR data itself.”



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