BFGoodrich has launched an isolated fuel quantity transmitter (IFQT), eliminating the need for operators of Boeing 747 classic aircraft to modify electrical wiring near fuel tanks.
The IFQT complies with US Federal Aviation Administration requirements introduced after the explosion in the central fuel tank that brought down flight TWA 800 in New York in 1996. It limits electrical energy and current to approved levels when it is inserted with existing wiring. The transmitter passes fuel quantity data through an isolation barrier to circuitry that drives the existing fuel quantity hardware.
BFG says the system enables operators to use existing in-tank hardware and wiring, provided it has been checked for damage.
Source: Flight International
