PN: 18-1738-52 (Flap position transmitter) PN: 18-1738-6 (Flap position transmitter) PN: 18-1851SERIES (Flap position transmitter) PN: 18-1886-6 (Flap position transmitter) PN: 18-1958-12 (Flap position transmitter) PN: 18-1958-14 (Flap position transmitter) PN: 18-1958-19 (Flap position transmitter) PN: 18-1958-20 (Flap position transmitter) PN: 18-1969-1 (Flap position transmitter)