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Fuel quantity indicating problem


sudani
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Hello,

Working on a legacy herc with a digital fuel qty system installed. We keep getting error code E7 displayed on the L/h aux indicator. Only, the fault is intermittent. E7 is apparently a compensator fault. So far we have changed the compensator, wiring from the L/h Fwd wing pressure break to the boundary connector, and calibrated the indicator. Also, reterminations of all the connectors completed to ensure no corrosion, bad wiring.Any thoughts?

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Wiring in the form of a connector in the system. Rear fuel tank bulkhead connector for sure, but also the connector going into the pressure bulkhead. One of those gave us a problem many years ago for an external tank. Wiggle wire at the connectors too.

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