Part Number 1820-9 (PMA Cable Cowl Flap 401 402 A B in stock with ready to ship. Get an instant quote for Ram Aircraft part number 1820-9 (PMA by filling form below with your desired order quantity, targeted price and the expected order-fulfilment date. Get instant quote for 1820-9 (PMA. Our dedicated account manager will get back to you within 15 minutes.