| 11001 | T | Line Maint A&T | Dispatch T&A Concourses | Business |
| 11002 | T | Line Maint B | Dispatch B Concourse | Business |
| 11003 | T | Line Maint A Alt | Unit-to-Unit A Concourse | Business |
| 11004 | T | Line Maint B Alt | Unit-to-Unit B Concourse | Business |
| 11005 | T | Dom OL Maint | Domestic Offline Maintenance | Business |
| 11006 | T | Line Maint Int'l | Dispatch International | Business |
| 11007 | T | Int OL Maint 1/2 | Int'l Offline Maintenance 1/2 | Business |
| 11008 | T | Int OL Maint 2/3 | Int'l Offline Maintenance 2/3 | Business |
| 11009 | T | Contract Maint. | Contact Maintenance | Business |
| 11010 | T | Cabin Maint | Cabin Maintenance | Business |
| 11011 | T | TOC Maint. | TOC Maintenance (Technical Operations Center) | Business |
| 11012 | T | Hangar Maint. | Hangar Maintenance | Business |
| 12006 | T | Toolroom Line | Toolroom Line | Business |