Check the listing for details. ASA E6-B Flight Piolet Knee Board An Bag. Condition: Used. Listed at 12.34 USD. The ASA E6-B Flight Pilot Knee Board is a high-quality product designed specifically for pilots. Manufactured by ASA, with the part number E6-B, this knee board provides pilots with a convenient way to hold their flight documents while navigating the aircraft. The product comes with a no warranty option, ensuring that customers are aware of the potential risks associated with this item. Ideal for aviation enthusiasts and professionals alike, this knee board is a reliable accessory for any pilot.