Tenant's personal property damaged by neighbor - landlord's role?

[Amy Fortes]

I am a landlord of a tenant in a condo building.  A neighbor (who has a tenant living in their unit as well) 2 floors above's window fell out and crashed onto my tenants' brand new window unit air conditioner and her car, damaging both.  She would like $350 to replace the AC.  She does not have renter's insurance.  What in this situation is my responsibility as the landlord?  Simply connecting her with the landlord of the unit with the broken window?