Yes, this is a messy construction case.

The parties in DFW Airport Board v. Inet Aiport Systems sued each other about problems in the installation of rooftop air conditioning units.  Key issues were “who breached first” and whether the parties had a meeting of the minds about a solution; the evidence consisted of a fast-moving, complicated exchange of emails and letters. The Fifth Circuit reversed a summary judgment, noting: “In these circumstances the Contract required both parties to participate in resolving defects. Any contractual modification or change order required the mutual assent of the parties, and questions of mutual assent are fact based. Sifting through the evidence to determine whether the parties reached agreement on a contractual modification is a task ill-suited for summary judgment on this record.”  Nos. 15-10390, 15-10600 (April 12, 2016).