Request For Price Alternate Part NumberPart NameReplaced PNQuanityMaterial Condition Mitchell Model AK684 or AK684FD Altimatic X Autopilot or Alt. X Flight Director Autopilot - Factory New New Unused Surplus Overhauled Used Any Aircraft Models Piper (PA-23-250, S/N 27-7654001 and Up (28 V Only). 1A10) Company Name First Name * Last Name * Email * Phone Number * Notes Sales Order T&CPrivacy Policy Send Request Please note that by requesting pricing, you are accepting our Sales Order T&C and Privacy Policy. For more information, please follow the links under the policy menu below.