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N144GP Lancair Super ES
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Date: 1-23-2012
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Number of Hours: 2.25
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Manual Reference:
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Brief Description: continue fuel tank calibration
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Realized I did the calibration of the right fuel tank incorrectly yesterday. Was not on the right fields in the AFS 3500 when I copied the settings as we pumped the fuel into the right tank.
So, today I reversed the process...starting with a full right tank, took out 13 gallons, marked the 40 gallon level. Took 10 more gallons out, and marked the 30 mark, and so on until done. Put 30 gallons in left tank, 10 at a time. Idea was to calibrate left at the same time.
But left was not reading at all....all zeros for the " AD Value". Put last of fuel in gas cans. Need to troubleshoot that issue... hopefully not the probe!
See pics below for log and settings for the right tank calibration. And, see view of probe end, capacitance to resistance converter, molex connector, and wiring. Thankfully I can access all that fairly easily through the fuel access panel. Will start troubleshhoting next session to check that I am getting 12V to converter, then inspect the molex pins, then will check that I have 5V coming out. Will see where that takes me. Always something....
Total fuel is likely closer to 52 gallons per side. Pumped 13+10+10+10+8.5 gallons out. First tank of 3 gallons may be a tad over, and I had several misc. small spills. Not likley 1.5 gallons but could be 1/2 gallon. Will play with the settings in AFS setup to smooth out the quantity.
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notes from fuel transfer
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probe end; converter; wiring
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slightly different view through access door
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