Thrush Aircraft S2R-R1340

Questions and Answers

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Elizabeth WalshAug 4, 2025
What to do if there is no fuel flow to the engine in my Thrush Aircraft?
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  stokessabrinaAug 4, 2025
  If there is no fuel flow to the engine in your Thrush Aircraft, start by checking the fuel quantity and ensure the tanks are filled with the correct grade and amount of fuel. Next, inspect the fuel lines for any disconnections or breaks, and connect or repair them as necessary. Check the header tank outlet fuel strainers for blockages by disconnecting the fuel lines from the tank outlets; if no fuel flows, the strainers are plugged. Remove and clean the strainers, then flush out the tanks. Inspect the fuel filter element for clogs, cleaning or replacing it as needed. Finally, check the fuel lines for obstructions, starting at the fuel pump inlet and disconnecting lines successively until you locate the blockage, then clean out or replace the affected fuel line.
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james91Aug 12, 2025
What to do if my Thrush Aircraft experiences fuel starvation after starting?
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  david91Aug 13, 2025
  If your Thrush Aircraft experiences fuel starvation after starting, it could be due to partial fuel flow issues or other factors. Begin by using the isolation procedures mentioned previously to check for a sufficient rate of flow, and apply the suggested solutions. Inspect the engine-driven fuel pump for any malfunctions during starting, and replace the fuel pump if necessary, referring to Section IV. Finally, check the fuel vents for blockages, including the ram air inlet, and pressure-check each vent line, cleaning or replacing the vent line as needed.
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megan36Aug 17, 2025
Why does the fuel gauge on my Thrush Aircraft always indicate full?
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  michelle74Aug 17, 2025
  If the fuel gauge on your Thrush Aircraft always reads full, there may be an open ground between the gauge and the transmitter. Check the resistance (ohms) to the transmitter. Also, inspect for a broken wire. The transmitter should read 0 ohms when the fuel tank is empty and 33 ohms when the fuel tank is full.
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Natasha HunterAug 21, 2025
How to fix inoperative fuel flow indicator in Thrush Aircraft?
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  Walter HillAug 21, 2025
  If the fuel flow indicator in your Thrush Aircraft is inoperative, check the voltage and ground wire. If voltage is present and the ground is good, replace the indicator, maintaining the same K factor.
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Taylor UnderwoodAug 26, 2025
What to do if fuel flow indicator comes on but will not show fuel flow in Thrush Aircraft?
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  Gloria SimonAug 27, 2025
  If the fuel flow indicator on your Thrush Aircraft illuminates but doesn't display fuel flow, the issue might stem from faulty wires to the transducer or a defective transducer. To inspect the transducer, detach the four screws securing the wire housing to the flow vane housing. With battery power active, move a screwdriver back and forth over the wire housing pickups. A reading should appear on the indicator. If there's no reading, consider replacing the units.
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Randy TylerOct 30, 2025
How to troubleshoot no fuel quantity indication on Thrush Aircraft?
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  Bryce RossOct 30, 2025
  If your Thrush Aircraft shows no fuel quantity, several issues could be the cause. First, ensure that the fuel tanks are not empty and are serviced with the correct fuel type and amount. Next, check the fuel quantity indicator circuit breaker for any visual signs of defects or if it's open; if not visibly open, test its continuity and reset it, replacing it if it's defective. Also, the fuel quantity indicator or transmitter may be defective: test by disconnecting the wire from the transmitter at the non-registering indicator and connect it to one that is working. If the indicator still fails to register, the transmitter is likely defective; if it registers, the original indicator is defective. Replace the faulty component. Check for loose connections or open circuits in the wiring, tighten...
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Jillian Harrell MDNov 8, 2025
Why is there no fuel flow when auxiliary pump is turned on in my Thrush Aircraft?
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  Michael MendezNov 8, 2025
  If your Thrush Aircraft experiences no fuel flow when the auxiliary pump is activated, begin by assessing the electric auxiliary fuel pump switch for continuity and replace it if defective. Check the circuit breaker for any signs of being open or defective; if it appears intact, test its continuity, reset it, and replace it if necessary. Inspect all connections and wiring for looseness or open circuits, ensuring you tighten connections and repair or replace any faulty wiring. To test the auxiliary fuel pump, disconnect the outlet line; with proper fuel supply, fuel should flow under pressure from the outlet. Replace the pump if it's defective. Lastly, examine the engine-driven fuel pump bypass valve during starting, referring to Section IV for guidance, and replace the fuel pump if the byp...