How Oxygen Masks Brought Down a Plane

From Reactions.

The same safety feature that gives you oxygen during an airplane emergency caused a plane to crash in 1996. How did something meant to keep you safe end up killing over 100 people?
#planecrash #oxygenmask #oxygengenerator

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Credits:
Executive Producers:
George Zaidan
Hilary Hudson

Producers:
Elaine Seward
Andrew Sobey
Darren Weaver

Writer/Host:
Alex Dainis, PhD

Scientific consultants:
Michelle Boucher, PhD
John Graf, PhD
Brianne Raccor, PhD

Sources:
Background on the disaster
https://www.coffeytriallaw.com/valujet-flight-592-miami-fl/

Amount of oxygen at 30,000 feet
https://milehightraining.com/altitude-to-oxygen-chart/

Size and shape of chemical oxygen generators
https://lessonslearned.faa.gov/ll_main.cfm?TabID=3&LLID=10&LLTypeID=2 https://www.youtube.com/watch?v=_MTgo_1pwKQ

Canister components
https://www.darylariawan.com/writing/2019/3/26/truth-behind-planes-oxygen-masks#:~:text=Above%20every%20row%20of%20seats,less%20than%201%25%20potassium%20perchlorate .
https://www.ntsb.gov/investigations/AccidentReports/Reports/AAR9706.pdf

Decomposition reaction
https://science.howstuffworks.com/transport/flight/modern/question258.htm#:~:text=Typically%2C%20an%20oxygen%20canister%20contains,of%20the%20reaction%20sustains%20itself.

NTSB accident report
https://www.ntsb.gov/investigations/AccidentReports/Reports/AAR9706.pdf

How airplane oxygen generators work
https://www.skybrary.aero/index.php/Chemical_Oxygen_Generators

Why the O2 mask might smell smokey
https://www.usatoday.com/story/travel/columnist/cox/2019/09/27/ask-captain-why-have-bag-oxygen-system-if-wont-inflate/3772763002/#:~:text=Answer%3A%20The%20design%20of%20passenger,is%20a%20continuous%20flow%20design.&text=During%20the%20time%20when%20you,fully%20inflate%20during%20this%20process.

The role of barium peroxide in chemical oxygen generators
https://pubs.acs.org/doi/10.1021/ie00017a028

Amount of oxygen generated
https://lessonslearned.faa.gov/ll_main.cfm?TabID=3&LLID=10&LLTypeID=2

Oxygen candle use on submarines and ISS
https://www.youtube.com/watch?v=g3Ud6mHdhlQ
https://www.space.com/1099-space-station-crew-ignite-oxygen-generating-candles.html

FAA Accident lessons learned
https://lessonslearned.faa.gov/ll_main.cfm?TabID=3&LLID=10&LLTypeID=2

Contractor found guilty, mechanic still on the run
https://www.nytimes.com/1999/12/07/us/contractor-found-guilty-in-trial-on-valujet-crash.html#:~:text=SabreTech%20Inc.%2C%20the%20aircraft%20maintenance,improperly%20handling%20the%20hazardous%20materials .
https://www.clickorlando.com/news/local/2021/05/11/25-years-since-deadly-valujet-592-crash-an-airline-mechanic-remains-on-the-run/ ; https://www.fbi.gov/news/stories/new-reward-for-fugitive-in-1996-valujet-crash-040518

Oxygen jar experiment
https://pubs.acs.org/doi/pdf/10.1021/ed076p914

Fire melted aluminum components
https://www.washingtonpost.com/archive/politics/1996/05/27/valujet-cabin-fire-melted-aluminum/a8ed401f-cbee-4f95-aa75-c17100521224/

Safety regulations changed after the crash
https://www.wtsp.com/article/news/regional/florida/valujet-crash-change-air-safety-regulations/67-5c3235c1-0578-4806-a07f-73d273787d40