B744 Oil Quantity

[Spanner Turner]

Your answer in Magenta has "popped-up" from the -400 manual below;

Difference Quantity

Oil Quantity Difference Monitoring begins when;

•At least 2 Engines are running within 2% N1 RPM, and
•The change in altitude of the Airplane is less than 200 feet/min or the aircraft is on the ground motionless.
An automatic pop-up of all oil parameters occurs when the difference in oil quantity between the high and low quantity Engine is 7 Litres
for greater than 180 seconds;
•The indication, which represents the low quantity Engine, will turn magenta in colour at the differential limit.


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