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Comment by callmeal | Hacker News Reader

Or they could be inadvertently flipped if the "locking" version was not installed: (see the avherald link):

>>India's media report that the investigation is NOT focussing on a human action causing the fuel switches to appear in the CUTOFF position, but on a system failure. Service Bulletins by Boeing issued in year 2018 recommending to upgrade the fuel switches to locked versions to prevent inadvertent flip of the switches, as well as the FAA/GE issued Service Bulletin FAA-2021-0273-0013 Attachment 2 relating to loss of control issue (also see above) were NOT implemented by Air India.

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https://ad.easa.europa.eu/blob/NM-18-33.pdf/SIB_NM-18-33_1

> Recommendations The FAA recommends that all owners and operators of the affected airplanes incorporate the following actions at the earliest opportunity: 1) Inspect the locking feature of the fuel control switch to ensure its engagement. While the airplane is on the ground, check whether the fuel control switch can be moved between the two positions without lifting up the switch. If the switch can be moved without lifting it up, the locking feature has been disengaged and the switch should be replaced at the earliest opportunity. 2) For Boeing Model 737-700, -700C, -800, and -900ER series airplanes and Boeing Model 737- 8 and -9 airplanes delivered with a fuel control switch having P/N 766AT613-3D: Replace the fuel control switch with a switch having P/N 766AT614-3D, which includes an improved locking feature.

I’m sorry to tell you this, but that appears to be an AI hallucination.

https://www.regulations.gov/document/FAA-2021-0273-0013

None of the attachments reference the fuel cutoff switches.

The peer comment to your own has a link to a real doc that supports the claim:

https://ad.easa.europa.eu/blob/NM-18-33.pdf/SIB_NM-18-33_1

No because the report says that the switches were turned off 1 second apart. This was a deliberate action.

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