As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
POST TAKE OFF AT 1800 TO 200 FL, AN ELECTRICAL BURNING SMELL DETECTED ON FLIGHT DECK. (PILOTS FOUND SMELL COMING FROM PACK NR 1). OPS CHECK AC PACK 1 AND PACK 1 DISTRIBUTION SYSTEM. OPS CHECK GOOD. INSPECTED ALL ELECTRONICS IN FLIGHT DECK. NO DEFECTS NOTED AT THIS TIME.