A Third-Party’s Removal of a Safety Device Did Not Require Summary Judgment In Favor of the Manufacturer, Even though the Safety Device Would Have Prevented the Injury/There Was Evidence the Safety Device Itself Was Defective, Leading to Its Removal by the Third Party/Therefore, the “Substantial Modification” Defense Did Not Insulate the Manufacturer from Liability as a Matter of Law

In a full-fledged opinion by Judge Abdus-Salaam, over a dissent, the Court of Appeals determined the defendant manufacturer of a post-hole digger did not demonstrate entitlement to summary judgment dismissing the product liability suit because a plastic safety shield (which would have prevented the injury) had been removed by a third party after the sale (the “substantial modification” defense).  There was evidence that the plastic shield was defective in that it wore out prematurely:

If the defendant establishes prima facie entitlement to summary judgment based on substantial modification, the burden shifts to the plaintiff to come forward with evidentiary proof in admissible form demonstrating “the existence of material issues of fact which require a trial of the action” …. . The plaintiff may overcome a substantial modification defense by demonstrating that the post-sale modification did not render a “safe product defective” because the product incorporated a defectively designed safety feature at the time of sale … . In other words, the plaintiff must raise a triable issue of fact whether the safety feature “was not reasonably safe and that the defective design was a substantial factor in causing plaintiff’s injury” … . * * *

…[I]f a plaintiff establishes the existence of material issues of fact concerning the defective design of a safety feature, the defendant will not automatically prevail on summary judgment simply because that safety feature was modified post sale. The substantial modification defense is intended to insulate manufacturers and others in the distribution chain from liability for injuries that would never have arisen but for the post-sale modification of a safety feature on an otherwise safe product. [It] does not, however, mandate summary disposal of cases where the plaintiff raises a colorable claim that the product was dangerous because of a defectively designed safety feature and notwithstanding the modification by the third party. We agree with the Appellate Division that, on this record, plaintiff established the existence of material issues of fact sufficient to overcome defendants’ substantial modification defense. Hoover v New Holland N Am Inc, 2014 NY Slip Op 02215, CtApp 4-1-14