A trial court should not have rejected a key witness in a wrongful death case brought after a man fell over a golf course’s sprinkler valve, a state appeals court ruled Wednesday.

The Appellate Division, Second Department, reversed summary judgment in MacIsaac v. Nassau County, 6575/13, ruling that Patricia MacIsaac, the administer of husband John MacIsaac’s estate, had raised a triable issue of fact as to whether a sprinkler valve in a grass-covered hole “was concealed or unreasonably increased the risks inherent in the golf course.”