As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
PDX - ON FLIGHT 2507, DURING TAXI OUT, RECEIVED A AUTO CROSSFLOW INHIBIT CAUTION MESSAGE. AIRCRAFT RETURNED TO THE GATE. MAINTENANCE RESET PER THE SERVICE LETTER 28-007C. OPERATIONAL CHECKS GOOD AIRCRAFT RETURNED TO SERVICE. NO PARTS REPLACED.