As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CREW NOTICED BURNING ELECTRICAL SMELL AFTER TAKEOFF. SMELL DISSIPATED ABOUT 2 MINUTES LATER. PASSENGER COMPLAINED ABOUT5-10 MINUTES AFTER THAT. FLIGHT ATTENDANT ALSO REPORTED BURNING SMELL IN THE AFT CABIN AFTER LANDING. MAINTENANCE FOUND LEFT PACK TEMP CONTROL VALVE FAILED AND REPLACED IT. DUCT BURN OUT PROCEDURES 5088 AND 5089 WERE COMPLIED WITH. ALL CHECKS GOOD.