
    Juan Dominguez et al., Appellants, v Stimpson Manufacturing Corp., Respondent.
    [616 NYS2d 221]
   —In an action to recover damages for personal injuries, etc., the plaintiffs appeal from an order of the Supreme Court, Nassau County (Christ, J.), dated January 10, 1992, which granted the defendant’s motion to dismiss the complaint.

Ordered that the order is affirmed, with costs.

The plaintiffs served process only by mail pursuant to CPLR 312-a. The defendant did not return the acknowledgement. ”The mailing of process pursuant to CPLR 312-a does not effect personal service * * * If the acknowledgment of receipt is not mailed or returned to the sender, the sender is required to effect personal service in another manner” (Matter of Shenko Elec. v Hartnett, 161 AD2d 1212, 1213; see also, Nagy v Heuss House Drop in Shelter for the Homeless, 198 AD2d 115; Patterson v Balaquiot, 188 AD2d 275). Since the plaintiffs did not attempt another manner of service, the service was defective. Accordingly, the Supreme Court properly dismissed the complaint. Thompson, J. P., Rosenblatt, Ritter, Friedmann and Krausman, JJ., concur.  