Comment by ssivark

> So the fuel supply was cut off intentionally. The switches in question are also built so they cannot be triggered accidentally

FAA issued a Special Airworthiness Information Bulletin SAIB NM-18-33 in 2018 warning that on several Boeing models including the 787 the locking mechanism of the fuel switches could be inoperative.

https://www.aviacionline.com/recommended-versus-mandatory-th...

Per FAA the checks were recommended but not mandatory.