Disagree button for engine shutdown

[tdracer]

Originally Posted by Someone Somewhere

Sampling rate has been given many times as 1Hz. Read through both the FDR group's report (#1) and minimally-processed FDR data (#2) on a previous GEnx/787 engine issue: https://data.ntsb.gov/Docket?ProjectID=84481

Depends on what sample rating you're talking about. FDR sample rate for most engines parameters is 1/second (as stated previously, I've never seen an engine parameter at higher than 1/second, some 'lesser' parameters are slower). Sample rate for the spar valve and fuel shutoff valves is a non-sequitur - as those are hardwired connections.
FADEC 3 (GEnx, as well as LEAP and later model GE90s) has a major frame rate of 60 ms and a minor frame rate of 15 ms, so it depends on the parameter you're looking at (e.g. does the FADEC look at each minor cycle or each major cycle).