---
kind: "section"
citation: "14 C.F.R. § 121.584"
title: "14"
number: "121.584"
heading: "Requirement to view the area outside the flightdeck door."
url: "https://uscodex.org/cfr/14/121.584"
---

# §121.584. Requirement to view the area outside the flightdeck door.


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:

- (a) A person authorized to be on the flightdeck uses an approved audio procedure and an approved visual device to verify that:
  - (1) The area outside the flightdeck door is secure, and;
  - (2) If someone outside the flightdeck is seeking to have the flightdeck door opened, that person is not under duress, and;
  - (3) If the airplane is in flight, any installed physical secondary barrier (IPSB) required by [§ 121.313(l)](/cfr/14/121.313.md?p=l) has been deployed; and
- (b) After the requirements of [paragraph (a)](#a) of this section have been satisfactorily accomplished, the crewmember in charge on the flightdeck authorizes the door to be unlocked and open.

## Notes

### Amendments

[Amdt. 121-334, 72 FR 45635, Aug. 15, 2007, as amended by Amdt. 121-389, 88 FR 41308, June 26, 2023]

### Source

Source: Docket 6258, 29 FR 19219, Dec. 31, 1964, unless otherwise noted.

### Authority

Authority: 49 U.S.C. 106(f), 40103, 40113, 40119, 41706, 42301 preceding note added by Pub. L. 112-95, sec. 412, 126 Stat. 89, 44101, 44701-44702, 44705, 44709-44711, 44713, 44716-44717, 44722, 44729, 44732; 46105; Pub. L. 111-216, 124 Stat. 2348 (49 U.S.C. 44701 note); Pub. L. 112-95, 126 Stat. 62 (49 U.S.C. 44732 note); Pub. L. 115-254, 132 Stat. 3186 (49 U.S.C. 44701 note).

### Amendments

[Amdt. 121-334, 72 FR 45635, Aug. 15, 2007, as amended by Amdt. 121-389, 88 FR 41308, June 26, 2023]