| Name | Lines of code | Maintainability | Test coverage |
| lib/aixm/a.rb | 82 | A 0 mins | |
| lib/aixm/executables.rb | 85 | A 0 mins | |
| lib/aixm/schedule/date.rb | 91 | A 0 mins | |
| lib/aixm/feature/navigational_aid/vor.rb | 94 | A 0 mins | |
| lib/aixm/xy.rb | 95 | A 0 mins | |
| lib/aixm/document.rb | 97 | A 0 mins | |
| lib/aixm/component/timesheet.rb | 100 | A 1 hr | |
| lib/aixm/component/helipad.rb | 102 | A 0 mins | |
| lib/aixm/component/surface.rb | 107 | A 0 mins | |
| lib/aixm/feature/unit.rb | 114 | A 0 mins | |
| lib/aixm/concerns/association.rb | 117 | A 1 hr | |
| lib/aixm/component/layer.rb | 119 | A 0 mins | |
| lib/aixm/schedule/time.rb | 126 | A 0 mins | |
| lib/aixm/component/fato.rb | 129 | A 0 mins | |
| lib/aixm/refinements.rb | 143 | A 0 mins | |
| lib/aixm/feature/airspace.rb | 150 | A 1 hr | |
| lib/aixm/component/service.rb | 162 | A 0 mins | |
| lib/aixm/feature/obstacle.rb | 185 | B 4 hrs | |
| lib/aixm/component/runway.rb | 225 | A 2 hrs | |
| lib/aixm/feature/airport.rb | 276 | B 4 hrs |