The 737 That Split Open at 24,000 Feet

About this video

Aloha Airlines Flight 243 lost its cabin roof at 24,000 feet when a lap joint on a 19-year-old 737 finally failed. This is the story of how 89,000 pressurization cycles turned riveted aluminum into a zipper, and why the disaster reshaped how every aging airliner is inspected today. Chapters: 00:00 The 737 That Split Open at 24,000 Feet 00:27 A Joint You'd Never Notice 00:43 The Most Ordinary Airplane in the Fleet 01:18 One Seam Carried the Load 01:34 The fuselage as a balloon 02:03 Where the load has nowhere to go 02:35 A flaw drawn into the design 03:01 The knife edge concentrated stresses that were t 03:26 The Failure Was Designed In 03:55 Mid-bay cracks ran longest 04:17 Cracking Adjacent to Nearly Every Hole 04:52 The failure of the Aloha Airlines maintenance pr 05:22 The Warning Aloha Already Had 05:38 From fixed life to found damage 06:07 The Rulebook Changed After 243 Sources & further reading: • NTSB Aircraft Accident Report AAR-89/03: Aloha Airlines Flight 243 — Official probable cause and findings on lap joint failure, fatigue cracking, and maintenance program deficiencies. • FAA Lessons Learned: Boeing 737-200, Aloha Airlines Flight 243 (N73711) — https://www.faa.gov/lessons_learned/transport_airplane/accidents/N73711 • NTSB Safety Recommendation Letter A-89-70-72 — https://www.ntsb.gov/safety/safety-recs/recletters/A89_70_72.pdf • Admiral Cloudberg, 'Falling to Pieces: The near crash of Aloha Airlines flight 243' — https://admiralcloudberg.medium.com/falling-to-pieces-the-near-crash-of-aloha-airlines-flight-243-18f28c03f27b • 14 CFR §25.571 — Damage Tolerance and Fatigue Evaluation of Structure — Federal regulation mandating damage-tolerance design philosophy. • USAF Damage Tolerance Design Handbook — https://www.afgrow.net/applications/dtdhandbook/sections/page1_0.aspx

From the video

The 737 That Split Open at 24,000 Feet
The 737 That Split Open at 24,000 Feet
The 737 That Split Open at 24,000 Feet
A Joint You'd Never Notice
A Joint You'd Never Notice
From Rivet Hole to Zipper
From Rivet Hole to Zipper
The Most Ordinary Airplane in the Fleet
The Most Ordinary Airplane in the Fleet
One pressurization cycle, 89,000 times
One pressurization cycle, 89,000 times
One Seam Carried the Load
One Seam Carried the Load
The Seam You Would Never Notice
The Seam You Would Never Notice
The fuselage as a balloon
The fuselage as a balloon
Where the load has nowhere to go
Where the load has nowhere to go
A flaw drawn into the design
A flaw drawn into the design
The knife edge concentrated stresses that were transferred through the rivets
The knife edge concentrated stresses that were transferred through the rivets

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The 737 That Split Open at 24,000 Feet