ARKWRIGHT-BOSTON MANUFACTURERS MUTUAL INSURANCE COMPANY, Plaintiff-Appellant, v. WESTINGHOUSE ELECTRIC CORP., Defendant-Appellee

GOLDBERG, Circuit Judge:

This diversity action results from a broken blade in an electrical turbine. The broken blade caused extensive damage to the turbine. The defendant manufactured and sold the turbine. The turbine’s purchaser procured insurance for the turbine from the plaintiff. The magistrate granted the defendant’s motion for summary judgment, and the plaintiff appeals. Finding no error, we affirm.

I. FACTS

1. One nonparty and the parties. El Paso Electric Company (“El Paso”) has provided electric power in the El Paso area for over eighty years, and operates three power stations with…