Tradewind International provides parts and accessories for legacy Bell, Eurocopter, MD, and Sikorsky helicopters. There is a 30-day return policy. Hours: 8 a.m. to 5 p.m. CST. For technical support call (800) 585-7004 (US and Canada) or (608) 756-3632, fax (608) 756-2606, or email [email protected].