As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
LGA FLIGHT#3829. CREW REPORTED BURNING ODOR LIKE A DUCT OVERHEAT. DUCT TEMP 20 DEGREES. FLIGHT ATTENDANT REPORTED A LIGHT HAZE IN CABIN. LEFT ENGINE WAS REPLACED IN ACCORDANCE WITH ALLEGHENY AIRLINES JOB CARD# 008-7101-349. AIRCRAFT RETUENED TO SERVICE.