DECISION ORDER
ORDERED that the order and judgment is reversed, on the law, with costs, the motion is denied, the cross motion is granted, and it is declared that Tower Insurance Company is not obligated to defend or indemnify Joseph T. Macari in the main action.
Where an insurance policy, such as the one in this case, requires an insured to provide notice of an accident or loss as soon as practicable, such notice must be provided within a reasonable time in view of the facts and circumstances (see Travelers Indem. Co. v. Worthy, 281 A.D.2d 411). Providing an insurer with timely notice of a potential claim is a condition precedent, and thus "[a]bsent a valid excuse, a failure to satisfy the notice requirement vitiates the policy" (Security Mut. Ins. Co. of New York v. Acker-Fitzsimons Corp., 31 N.Y.2d 436, 440).
The second third-party defendant, Tower Insurance Company (hereinafter Tower), established, prima facie, its entitlement to judgment as a matter of law. In opposition, the excuses offered by Tower's additional insured, Joseph T. Macari, and his primary insurer, National Surety Corporation, a Fireman's Fund Insurance Company (hereinafter Fireman's), failed to raise a triable issue of fact as to whether the nearly three-month delay in notifying Tower was reasonable. The excuse asserted by Macari and Fireman's to explain Macari's failure to notify — that Fireman's was investigating the claim — was insufficient as a matter of law to excuse the almost three-month delay (see Travelers Indem. Co. v. Worthy, supra at 412; Safer v. Government Empls. Ins. Co., 254 A.D.2d 344) . The fact that Tower acquired actual knowledge of the occurrence from the primary insured did not excuse Macari's noncompliance with the notice provision, since the primary insured held a position adverse to Macari's (see National Union Fire Ins. Co. of Pittsburgh, Pa. v. State Ins. Fund, 266 A.D.2d 518, 520; American Mfrs. Mut. Ins. Co. v. CMA Enters., 246 A.D.2d 373).
Accordingly, the Supreme Court erred in concluding that Macari's delay in providing Tower with notice of the accident was reasonable (see Travelers Indem. Co. v. Worthy, 281 A.D.2d at 412).
Tower's remaining contentions are academic in light of this determination.
SANTUCCI, J.P., ALTMAN, McGINITY and ADAMS, JJ., concur.