As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FALCON 2000 COCKPIT PAX AND CREW LIGHTS ILLUMINATED ON THE GROUND. FOLLOWING COMPUTER DOWNLOAD FAULT ANALYSIS RECOMMENDATION, REPLACED CONDITIONING CONTROL VALVE. THIRD FAILURE OF SAME P/N VALVE IN EIGHT MONTHS OF OPERATION - EACH TIME IN A DIFFERENT POSITION IN THE SYSTEM. (FOUR VALVES SAME P/N IN SYS.) NEW AIRCRAFT F2000-0128 SAME FAULT AND ACTION TAKEN AT APPROX. 30 HRS. OF OPERATION.