In its FOIA Electronic Reading Room, the Transportation Security Administration (TSA) publishes semi-regular reports on the monthly numbers of traveler complaints by airport, category, and subcategory.
Unfortunately, they post these data only as PDFs (e.g.), rather than as machine-readable data files, posing substantial barriers to further analysis.
It’s an approach to “transparency” that leaves much to be desired. So the Data Liberation Project has built a data pipeline that converts those PDFs into CSV files. Now you can access the complaint counts as tidy, standardized, machine-readable data.
The records cover complaints at 440+ airports going back to January 2015; the Data Liberation Project aims to keep the pipeline and dataset updated.