Aeronautical Accessories offers replacement windows for the Bell 407 High Visibility Cabin Door Kit. The High Visibility Cabin Door Kit for Bell 407 helicopters is a modification to the existing passenger doors and litter doors that incorporates an expanded window providing a larger viewing area. This kit is ideal for law enforcement, tourism, corporate and other applications where enhanced visibility is desired. Available in clear, light gray, medium gray and dark gray with or without snap vents for cabin ventilation. Important Note: Please inspect your doors being sent in for high visibility modification prior to shipment to Aeronautical Accessories to ensure they are airworthy. If the door is found unairworthy, any repair costs will be over and above the high visibility door modification cost. Receipt of an unairworthy door will also significantly impact your quoted lead time.