What was found
BOI - FLIGHT 2573, LEFT PACK CAUTION MESSAGE ON TAXI. RETURNED TO THE GATE. MAINTENANCE PLACED THE SYSTEM ON MEL 21-51-1A. MAINTENANCE REPLACED THE FLOW CONTROL VALVE. OPERATIONAL CHECKS GOOD. AIRCRAFT RETURNED TO SERVICE.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
BOI - FLIGHT 2573, LEFT PACK CAUTION MESSAGE ON TAXI. RETURNED TO THE GATE. MAINTENANCE PLACED THE SYSTEM ON MEL 21-51-1A. MAINTENANCE REPLACED THE FLOW CONTROL VALVE. OPERATIONAL CHECKS GOOD. AIRCRAFT RETURNED TO SERVICE.