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Tim Goken

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Everything posted by Tim Goken

  1. There is a good chance the PIR(Power Indicator Relay) or the blocking diode going to the PRI is bad. I believe they are both in the generator control panel. I would change the GCP and give it a shot. Hope this helps. Let us know what you find.
  2. Try T.O. 1C-130(H)H-4, Figure 124 on page 2-1029. Is what you are looking for the bracket that the pilots trim switch and mic switch mount to? If so, try part number KZ445
  3. Each engine driven pump puts out 8.6 gpm at 2525 psi and the system pressure relief valve has the capability to bypass 16 gpm when it is fully open at 3850 psi. With that being said, you should never experience an overpressure of that much. For that to actually happen, you would have to have a pump compensator and system pressure relief valve fail at the same time. It must have happened because there is a procedure in the dash one for it. A friend told me that he had an overpressure while he was flying slicks at Rhein Main in the '80's. He didn't say exactly what that pressure was and nobody actually noticed the rudder booster pressure when the flaps were up. My thoughts: The rudder pressure reducer should bypass enough pressure in conjunction with the system pressure relief valve to keep it between 1100-1400 psi. If not, the rudder pressure relief valve would open at 1600 psi and maintain no more than that pressure.
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