wildweasel_pt Posted March 12, 2014 Share Posted March 12, 2014 Hi all Data: Model - H2 (elongated H model) Engine - T-56 A15 Event - Secondary fuel light illumination in flight. Pulled ignition CB and light remained on. Troubleshoot: - Speed sensitive checked good - Fuel filter and fuel line clean of debris - pressure switch checks good - On start-up after 16% rpm secondary light illumination kicks on and remains on, no swing for series on TIT indicator - Suspected problem with fuel pump (possible seizure of fuel pump without braking or shaft to gearbox?) - Fuel pump checked good and paralleling valve apparently also. Question: What made the paralleling valve close (paralleling operation) if the speed sensitive checked good? Its a valve that needs electrical condition either to open or close not spring loaded like bleed air. Got into a conversation with maintenance and they are going to further analyze the paralleling valve and check solenoid and such but what do you all think about it? Thanks in advance Quote Link to comment Share on other sites More sharing options...
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