Avco Corp., Textron Lycoming Reciprocating Engine Division of Avco Corp. v. Interstate Southwest, Ltd.

*638OPINION

EVA M. GUZMAN, Justice.

In this commercial dispute, we are asked to determine questions regarding standing and capacity, the proper scope of declaratory relief, and the application of the express-negligence rule, as well as traditional sufficiency challenges to certain evidence. The appellant, an aircraft engine manufacturer, contracted with a forging company for the production of crankshaft forgings made to the manufacturer’s specifications.1 After a series of crankshaft failures, an affiliate of the forging company sued the engine manufacturer, alleging that the manufacturer…