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Hello everyone! How do you do! As promised, this is the full video dealing with procedures for verifying that you do not have a fuel leak and balancing fuel. I’ve previously shown you the items to check on the QRH to verify that you do NOT have a fuel leak. One common factor in all the checklists for the different FUEL IMBAL EICAS messages is that there is a need to first verify that you do not have a fuel leak. So the preamble at the start of the respective checklist is identical. In case you are wondering why we have to balance the fuel, it is because if we didn’t, it can cause an increase in aerodynamic drag, result in extra trimming etc, thus increasing the fuel consumption. The fuel quantities that trigger FUEL IMBAL 1-4, or FUEL IMBAL 2-3 appear odd right? As in 1360 kgs and 2720kgs- this is because the aircraft is manufactured in the USA and the units of calibration used are pounds. So for operators in the USA for example where fuel units are in pounds, the quantities are 3000 lbs and 6000 pounds (which converted to Kgs comes to 1360kg for tanks 1-4 and 2720kgs for tanks 2-3)- it’s purely a difference in units used.
A few days ago I had to balance the fuel flying from Penang to Phnom Pehn after the EICAS indicated ‘FUEL IMBALANCE’. Once you watch this video, you will know what that means😀. The last thing I’ll mention is the message ‘FUEL TANK/ENG’. This message shows so that the pilots can configure the fuel for each tank to feed its respective engine. This of course needs the fuel quantities in each tank to be balanced as for all intensive purposes, the engines consume similar amounts of fuel. Anyway- hope it all makes sense. ‘Chi Di Gin! Later😀