LOUISVILLE, Ky. - A plaintiff's engineering expert testifying on behalf of the estate of a man who was burned by exploding hot asphalt is not qualified to opine about the asphalt kettle's alleged defects, a federal judge held June 11 (Karen Fimbres, et al. v. Garlock Equipment Co., No. 3:11-CV-226-CRS-JDM, W.D. Ky.; 2014 U.S. Dist. LEXIS 79384).