{"data":{"id":"us/14-cfr-121.584","jurisdiction":"us","citation":"14 CFR 121.584","heading":"Requirement to view the area outside the flightdeck door.","body":"From the time the airplane moves in order to initiate a flight segment through the end of that flight segment, no person may unlock or open the flightdeck door unless:\n(a) A person authorized to be on the flightdeck uses an approved audio procedure and an approved visual device to verify that:\n(1) The area outside the flightdeck door is secure, and;\n(2) If someone outside the flightdeck is seeking to have the flightdeck door opened, that person is not under duress, and;\n(3) If the airplane is in flight, any installed physical secondary barrier (IPSB) required by § 121.313(l) has been deployed; and\n(b) After the requirements of paragraph (a) of this section have been satisfactorily accomplished, the crewmember in charge on the flightdeck authorizes the door to be unlocked and open.","path":["Title 14—Aeronautics and Space","CHAPTER I—FEDERAL AVIATION ADMINISTRATION, DEPARTMENT OF TRANSPORTATION","SUBCHAPTER G—AIR CARRIERS AND OPERATORS FOR COMPENSATION OR HIRE: CERTIFICATION AND OPERATIONS","PART 121—OPERATING REQUIREMENTS: DOMESTIC, FLAG, AND SUPPLEMENTAL OPERATIONS","Subpart T—Flight Operations"],"source_url":"https://www.ecfr.gov/api/versioner/v1/full/2026-08-25/title-14.xml","current_through":"2026-08-25","vintage":"","retrieved_at":"2026-08-27T02:24:20Z","sha256":"42815e2beeb75824b83136d093b043f7e7be321c852e077b696e83d286f6dc2d","source_id":"us-cfr","stale":true,"prev":"us/14-cfr-121.583","next":"us/14-cfr-121.585"},"notice":"GroundRules: Original legal text. Not legal advice."}