The current APICS magazine has a 4 page story about Delta Airline's use of TOC - specifically DBR and Critical Chain:
Delta Airlines is going against industry trends in maintenance, repair, and overhaul (MRO). In 2006, Delta Airlines Technical Operations (Delta Tech Ops) expanded its engine maintenance business with a resounding 33 percent increase in orders from external customers. This remarkable achievement was accomplished not only during a time when Delta was facing bankruptcy, but also amidst an industry push to continue outsourcing airline MRO operations. Such substantial growth was achieved through the infusion of a new execution management system rooted in the theory of constraints (TOC).
Grab it quick ... the article will only be free until the next issue is posted.
[Thanks to Steve Holt for the link].