Originally Posted by
wiggy
Sounds like the trigger for the EICAS message “Fuel Disagree” on the T7 and if I recall it correctly the 744......
As noted, it was an FAA requirement. Timing of the implementation would have been different (updating EICAS s/w is a big deal), but the requirement was the same. So yes, 747-400/-8, 757, 767, 777, and 787 got more or less the same change - even that old antique 737 got something (even though it doesn't have an EICAS as such)...