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1. 09:22 AM - chraging problem/symptom (dlm)
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| Subject: | chraging problem/symptom |
My first instinct was right; It was a beaker but not the field as I
thought, after the extra work of removing the cowl and inspecting the
engine/alternator without finding a cause I checked voltage directly on the
primary bus while running the engine; voltage was 14+. I knew that charging
data came from the GRT EIS and was transmitted to the Chelton and GRT Sport
via RS232 data. What I did not notice was that while running the engine
that amps were still displayed normally on the Sport but both primary and
secondary bus voltages were displaying battery voltage. When I noticed this
anomaly I correctly deduced that the master avionics breaker which
electrically unites the busses had failed. A 15 minute replacement and all
was well.
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