Uploaded January 2024 | Updated September 2026, 1 week ago
This video is in response to the incident to Alaskan Airlines flight AS 1282 whose mid-cabin emergency exit door detached in-flight whilst climbing through 16,000ft on 5 Jan 2024. Fortunately, there were no injuries.
In it I cover the reason for the mid-cabin exit door, its construction and operation, Door Warnings & Flightlocks, the SPSEU, MAX PSEU Differences and Alaskan 1282.
*** Errata A deactivated mid-cabin exit door limits the maximum pax capacity to 189, not 175 as I stated in this video. ***
Note that there is now a follow-up video with more material here youtu.be/maLBGFYl9_o
Contents:
0:42 Introduction
1:27 Operation
4:59 Options
14:31 Door Warnings & Flightlocks
17:22 SPSEU
19:36 MAX PSEU Differences
21:44 Alaskan 1282
This video is in response to the incident to Alaskan Airlines flight AS 1282 whose mid-cabin emergency exit door detached in-flight whilst climbing through 16,000ft on 5 Jan 2024. Fortunately, there were no injuries.
In it I cover the reason for the mid-cabin exit door, its construction and operation, Door Warnings & Flightlocks, the SPSEU, MAX PSEU Differences and Alaskan 1282.
*** Errata A deactivated mid-cabin exit door limits the maximum pax capacity to 189, not 175 as I stated in this video. ***
Note that there is now a follow-up video with more material here youtu.be/maLBGFYl9_o
Contents:
0:42 Introduction
1:27 Operation
4:59 Options
14:31 Door Warnings & Flightlocks
17:22 SPSEU
19:36 MAX PSEU Differences
21:44 Alaskan 1282



