As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CREW REPORTED THAT THERE WAS AN ELECTRICAL BURNING SMELL IN THE COCKPIT UPON ARRIVING AT THE GATE. MAINTENANCE REPLACED THE GASPER VALVE FOR THE LEFT ELECTRICAL FLIGHT INSTRUMENT SYSTEMS. OPERATIONAL CHECKS WERE GOOD WITH NO FURTHER DEFECTS NOTED.