T.O. BMS1F-16CM-1
BMS 4.34 Change 2.00
BMS 4.34 Dash 1
© Red Dog 2012-2019
Page: 127
1.7.8. Analysis of caution lights & HUD messages relevant to the fuel system
Beside the needles and the fuel totalizer
there aren’t many caution lights for the fuel system.
The two main ones are located on the caution panel and come on when the level of fuel in
the fuselage reservoir tanks reach 400 lbs for the FWD reservoir and 250 lbs for the AFT
reservoir.
Obviously the FWD caution light is relevant to the F/R fuel system (Forward fuselage
reservoir) and the AFT caution light is relevant to the A/L fuel system and more
specifically to the Aft fuselage reservoir. The MASTER CAUTION light will come on as well. Those
lights are powered by the emergency DC bus n°1 and are independent from the fuel totalizer.
Usually when these two come on
you’re in trouble because you only have a few seconds of engine
power left and you should land right away. Consider also that fuel gauges are notoriously imprecise.
You
’ve also busted the minimum fuel needed on board when landing which is 1200 lbs.
Effective fuel management includes setting a Joker and a Bingo setting in the UFC. This will make
Betty call
“Bingo – Bingo” when that fuel state is reached (if the FUEL QTY SEL knob is in NORM).
A flashing FUEL indication will also be displayed in the HUD. That warning message can be reset with
the WARN RESET switch on the ICP.
Another HUD message relevant to the fuel system is the TRP FUEL, meaning a condition of trapped
fuel has occurred. Again it can be reset with the WARN RESET switch (TRP FUEL will remain
displayed on the left of the HUD), but it is much better to solve the problem at its source.
Summary of Contents for F-16C/D 4.34
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