As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING ENG START, PREVIOUS TO DEPART AS FLIGHT TAI 409, THE FLIGHT CREW REPORTED AIR CROSS BLEED FAULT, DUE TO FAILURE THE ACFT REMAINED ON GND FOR MX. PERFORMED FAULT ANALYSIS IAW TSM 36-12-00-810-802-A. REPLACED THE CROSS BLEED VLV SELECTOR SWITCH 3HV IAW ESPM 20-45-23. PERFORMED TEST TO THE CROSS BLEED VLV WITH NORMAL RESULTS. THE ACFT WAS RETURNED TO SERVICE.