Switch inverted after losing APU power
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Night time. Aircraft is parked, entry light is on, power is supplied by the APU. If I momentarily turn the APU GEN off, and then back on, the entry lights do not come back, I need to press the switch to turn it on - but now the switch is the normal off position, so basically it gets inverted. If I turn off APU power again and turn it back on, then again, I need to switch on the entry lights, and then it gets inverted again, what was its on postion becomes its off position.
Also, TRP did not turn on at all.