As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ON CLIMBOUT, NOTICED THE FUEL OPEN VALVE LIGHT WAS ILLUMINATED ON THE APU FIRE PROTECTION PANEL. THE APU HAD NOT BEEN USED. PULLED AND RESET CIRCUIT BREAKER APU SOV L3. C/W FIM FAULT ISOLATION FIRE PROTECTION PANEL FUEL OPEN LIGHT IN THE APU AREA IAW FIM 26-23-00-810-807, PAR 1-3A1 (A). OP'S CHECKED GOOD. NUMERIOUS TIME POWER ON AND OFF APU SOV OPEN AND CLOSED NORMAL. NO DEFECT NOTED AT THIS TIME. COULD NOT DUPLICATE. RETURNED TO SERVICE. NO PARTS REPLACED.