Someone must be flying a different brand of Boeing; always found the fuel systems to be highly reliable but then it was with well maintained aircraft and sound procedures.
If the aircraft concerned
has been fitted with digital indicators, which are not as accurate instantaneously as the old electro mechanical types and this is a known fault
then why are there not procedures in place to ensure correct fuel loads are loaded and carried?
If this is correct `
With all those tanks and various fuel configs during the flight, the indicators jump around a bit as fuel quty transitions from one probe to the next in the tank. There is also stratas of fuel density that the compensator system picks up.
I'm not sure of current limits but a tolerance of up to 10% in a tank was also allowed within the other confines of 3% etc. The end result is at low qutys it is quite normal after a long flight to not know exactly where all the fuel is down to the last 1000 kgs. Hence my comments about it being good to know which tanks had a water content on the last drain’
then; why is this allowed to persist and why are there not procedures in place to ensure correct fuel is carried, uplifted and burnt?
How can a crew possibly know what fuel is on board of this previous statement is correct?
How can a fuel tolerance of 3%
suddenly be converted to 10% within other confines, etc
and ensure a crew know what fuel is where or consumed?
Where & when (how often) are fuel tank drips done?
Once upon a time they were done very regularly if not once daily and certainly on request.
If the problem started at an earlier time somewhere there has to be a time when fuel ordered, fuel loaded and fuel on board did not tally; why was it not picked up?
DK